{
  "count": 42,
  "categories": [
    {
      "id": "financial",
      "name": "Financial",
      "blurb": "Loan, mortgage, compound interest, tip and sales tax calculators for everyday money decisions."
    },
    {
      "id": "math",
      "name": "Math",
      "blurb": "Percentage, average, ratio, GCD and rounding calculators for quick number work."
    },
    {
      "id": "health",
      "name": "Health",
      "blurb": "BMI, BMR, calorie and ideal weight calculators built on standard medical formulas."
    },
    {
      "id": "geometry",
      "name": "Geometry",
      "blurb": "Area, perimeter, volume and surface area calculators for circles, rectangles and solids."
    },
    {
      "id": "time",
      "name": "Time & Date",
      "blurb": "Age, days between dates and add days calculators for anything on a calendar."
    },
    {
      "id": "conversion",
      "name": "Conversions",
      "blurb": "Length, weight and temperature converters covering metric and imperial units."
    }
  ],
  "calculators": [
    {
      "slug": "loan",
      "name": "Loan Calculator",
      "category": "financial",
      "description": "Loan calculator for any amount, rate and term. See your monthly payment, total interest and total cost instantly, with the amortization math shown.",
      "keywords": [
        "loan calculator",
        "loan payment calculator",
        "monthly loan payment",
        "car loan calculator",
        "personal loan calculator",
        "loan interest calculator"
      ],
      "endpoint": "/api/calc/loan"
    },
    {
      "slug": "mortgage",
      "name": "Mortgage Calculator",
      "category": "financial",
      "description": "Mortgage calculator with taxes and insurance. Estimate your monthly house payment, principal and interest, and total interest over the loan term.",
      "keywords": [
        "mortgage calculator",
        "mortgage payment calculator",
        "monthly mortgage payment",
        "home loan calculator",
        "mortgage calculator with taxes and insurance"
      ],
      "endpoint": "/api/calc/mortgage"
    },
    {
      "slug": "compound-interest",
      "name": "Compound Interest Calculator",
      "category": "financial",
      "description": "Compound interest calculator with monthly contributions. See the future value of your savings, total contributed and interest earned over any period.",
      "keywords": [
        "compound interest calculator",
        "compound interest with monthly contributions",
        "future value calculator",
        "investment growth calculator",
        "savings interest calculator"
      ],
      "endpoint": "/api/calc/compound-interest"
    },
    {
      "slug": "simple-interest",
      "name": "Simple Interest Calculator",
      "category": "financial",
      "description": "Simple interest calculator: enter principal, rate and time to get the interest and total amount owed or earned, with the I = Prt working shown.",
      "keywords": [
        "simple interest calculator",
        "simple interest formula",
        "calculate simple interest",
        "interest calculator"
      ],
      "endpoint": "/api/calc/simple-interest"
    },
    {
      "slug": "tip",
      "name": "Tip Calculator",
      "category": "financial",
      "description": "Tip calculator that adds the gratuity and splits the bill. Enter the bill, tip percent and party size to see the tip, total and each person's share.",
      "keywords": [
        "tip calculator",
        "tip calculator with split",
        "how much to tip",
        "gratuity calculator",
        "split the bill"
      ],
      "endpoint": "/api/calc/tip"
    },
    {
      "slug": "sales-tax",
      "name": "Sales Tax Calculator",
      "category": "financial",
      "description": "Sales tax calculator: enter a price and tax rate to get the tax amount and the total price with tax. Works for any state or local sales tax rate.",
      "keywords": [
        "sales tax calculator",
        "price with tax",
        "how much is tax",
        "sales tax rate",
        "vat calculator"
      ],
      "endpoint": "/api/calc/sales-tax"
    },
    {
      "slug": "discount",
      "name": "Discount Calculator",
      "category": "financial",
      "description": "Discount calculator for percent off deals. Enter the original price and the discount to see the final sale price and exactly how much you save.",
      "keywords": [
        "discount calculator",
        "percent off calculator",
        "sale price calculator",
        "20 percent off",
        "how much do i save"
      ],
      "endpoint": "/api/calc/discount"
    },
    {
      "slug": "roi",
      "name": "ROI Calculator",
      "category": "financial",
      "description": "ROI calculator: enter your initial investment and final value to get return on investment, net gain and annualized return over the holding period.",
      "keywords": [
        "roi calculator",
        "return on investment calculator",
        "annualized return calculator",
        "investment return",
        "calculate roi"
      ],
      "endpoint": "/api/calc/roi"
    },
    {
      "slug": "savings-goal",
      "name": "Savings Goal Calculator",
      "category": "financial",
      "description": "Savings goal calculator that shows how much to save per month to reach a target, counting your current savings and the return they earn on the way.",
      "keywords": [
        "savings goal calculator",
        "how much to save per month",
        "monthly savings calculator",
        "savings target calculator"
      ],
      "endpoint": "/api/calc/savings-goal"
    },
    {
      "slug": "cagr",
      "name": "CAGR Calculator",
      "category": "financial",
      "description": "CAGR calculator: enter a beginning value, ending value and number of years to get the compound annual growth rate plus total growth in percent.",
      "keywords": [
        "cagr calculator",
        "compound annual growth rate",
        "annual growth rate calculator",
        "cagr formula",
        "calculate cagr"
      ],
      "endpoint": "/api/calc/cagr"
    },
    {
      "slug": "percentage",
      "name": "Percentage Calculator",
      "category": "math",
      "description": "Percentage calculator that finds what X percent of a number is, like 15% of 200, with the working shown. Quick answers for tips, tests and discounts.",
      "keywords": [
        "percentage calculator",
        "percent of a number",
        "what is 15 percent of 200",
        "find percentage",
        "percent calculator"
      ],
      "endpoint": "/api/calc/percentage"
    },
    {
      "slug": "percentage-change",
      "name": "Percentage Change Calculator",
      "category": "math",
      "description": "Percentage change calculator: compare two numbers to get the percent increase or decrease and the raw difference, with the formula and steps shown.",
      "keywords": [
        "percentage change calculator",
        "percent increase calculator",
        "percent decrease calculator",
        "percentage difference between two numbers"
      ],
      "endpoint": "/api/calc/percentage-change"
    },
    {
      "slug": "average",
      "name": "Average Calculator (Mean, Median, Mode)",
      "category": "math",
      "description": "Average calculator for any list of numbers. Paste your values to get the mean, median, mode, sum, count and range in one step. Free, no sign-up.",
      "keywords": [
        "average calculator",
        "mean median mode calculator",
        "mean calculator",
        "median calculator",
        "average of numbers"
      ],
      "endpoint": "/api/calc/average"
    },
    {
      "slug": "ratio",
      "name": "Ratio Calculator",
      "category": "math",
      "description": "Ratio calculator that reduces any ratio to lowest terms and shows it as a decimal, like 16:9 to 1.78. Handy for screens, recipes and scale models.",
      "keywords": [
        "ratio calculator",
        "simplify ratio",
        "ratio to decimal",
        "aspect ratio calculator",
        "ratio simplifier"
      ],
      "endpoint": "/api/calc/ratio"
    },
    {
      "slug": "gcd-lcm",
      "name": "GCD and LCM Calculator",
      "category": "math",
      "description": "GCD and LCM calculator: find the greatest common divisor and least common multiple of two integers at once, with the math behind each answer.",
      "keywords": [
        "gcd calculator",
        "lcm calculator",
        "greatest common divisor",
        "least common multiple",
        "gcf calculator"
      ],
      "endpoint": "/api/calc/gcd-lcm"
    },
    {
      "slug": "rounding",
      "name": "Rounding Calculator",
      "category": "math",
      "description": "Rounding calculator that rounds any number to the decimal places you choose, from whole numbers to 10 places. Instant, exact and free to use.",
      "keywords": [
        "rounding calculator",
        "round to 2 decimal places",
        "round numbers",
        "round to the nearest",
        "decimal rounding"
      ],
      "endpoint": "/api/calc/rounding"
    },
    {
      "slug": "words-to-numbers",
      "name": "Words to Numbers Converter",
      "category": "math",
      "description": "Words to numbers converter: type a number in English words, like two thousand five hundred, and get the digits. Handles decimals and negatives too.",
      "keywords": [
        "words to numbers",
        "convert words to numbers",
        "number words to digits",
        "spelled out numbers to numerals",
        "text to number converter"
      ],
      "endpoint": "/api/calc/words-to-numbers"
    },
    {
      "slug": "bmi",
      "name": "BMI Calculator",
      "category": "health",
      "description": "BMI calculator for adults: enter height and weight in metric or imperial units to get your body mass index and weight category, with the formula shown.",
      "keywords": [
        "bmi calculator",
        "body mass index",
        "calculate bmi",
        "healthy bmi range",
        "bmi categories"
      ],
      "endpoint": "/api/calc/bmi"
    },
    {
      "slug": "bmr",
      "name": "BMR Calculator",
      "category": "health",
      "description": "BMR calculator using the Mifflin-St Jeor equation. Enter age, sex, height and weight to find the calories your body burns at rest each day.",
      "keywords": [
        "bmr calculator",
        "basal metabolic rate calculator",
        "mifflin st jeor calculator",
        "resting calorie burn",
        "calculate bmr"
      ],
      "endpoint": "/api/calc/bmr"
    },
    {
      "slug": "calorie",
      "name": "Calorie Calculator (TDEE)",
      "category": "health",
      "description": "Calorie calculator that estimates your TDEE, the calories you burn per day, plus targets for losing or gaining weight at your activity level.",
      "keywords": [
        "calorie calculator",
        "tdee calculator",
        "maintenance calories",
        "how many calories should i eat",
        "daily calorie needs"
      ],
      "endpoint": "/api/calc/calorie"
    },
    {
      "slug": "ideal-weight",
      "name": "Ideal Weight Calculator",
      "category": "health",
      "description": "Ideal weight calculator based on the Devine formula. Enter your height and sex to get a healthy target weight in both kilograms and pounds.",
      "keywords": [
        "ideal weight calculator",
        "ideal body weight",
        "healthy weight for height",
        "devine formula calculator"
      ],
      "endpoint": "/api/calc/ideal-weight"
    },
    {
      "slug": "circle",
      "name": "Circle Calculator",
      "category": "geometry",
      "description": "Circle calculator: enter the radius to get the area, circumference and diameter in one step, with the pi formulas and working written out for you.",
      "keywords": [
        "circle calculator",
        "area of a circle",
        "circumference calculator",
        "circle area formula",
        "circumference of a circle"
      ],
      "endpoint": "/api/calc/circle"
    },
    {
      "slug": "rectangle",
      "name": "Rectangle Calculator",
      "category": "geometry",
      "description": "Rectangle calculator: enter length and width to get the area, perimeter and diagonal at once. Useful for rooms, gardens, screens and materials.",
      "keywords": [
        "rectangle calculator",
        "area of a rectangle",
        "perimeter of a rectangle",
        "rectangle diagonal",
        "square footage"
      ],
      "endpoint": "/api/calc/rectangle"
    },
    {
      "slug": "triangle-area",
      "name": "Triangle Area Calculator",
      "category": "geometry",
      "description": "Triangle area calculator using base and height. Get the area from the half base times height formula, with each step of the working shown.",
      "keywords": [
        "triangle area calculator",
        "area of a triangle",
        "triangle area formula",
        "base and height area"
      ],
      "endpoint": "/api/calc/triangle-area"
    },
    {
      "slug": "cylinder-volume",
      "name": "Cylinder Volume Calculator",
      "category": "geometry",
      "description": "Cylinder volume calculator: enter radius and height to get the volume and total surface area, useful for tanks, pipes, cans and containers.",
      "keywords": [
        "cylinder volume calculator",
        "volume of a cylinder",
        "cylinder surface area",
        "tank volume calculator"
      ],
      "endpoint": "/api/calc/cylinder-volume"
    },
    {
      "slug": "sphere-volume",
      "name": "Sphere Volume Calculator",
      "category": "geometry",
      "description": "Sphere volume calculator: enter the radius to get the volume and surface area of a sphere, with the 4/3 pi r cubed formula worked through.",
      "keywords": [
        "sphere volume calculator",
        "volume of a sphere",
        "sphere surface area",
        "sphere volume formula"
      ],
      "endpoint": "/api/calc/sphere-volume"
    },
    {
      "slug": "age",
      "name": "Age Calculator",
      "category": "time",
      "description": "Age calculator that shows exactly how old you are in years, months and days from your date of birth, plus your total age in months and days.",
      "keywords": [
        "age calculator",
        "how old am i",
        "calculate age from date of birth",
        "age in days",
        "chronological age calculator"
      ],
      "endpoint": "/api/calc/age"
    },
    {
      "slug": "date-difference",
      "name": "Date Difference Calculator",
      "category": "time",
      "description": "Date difference calculator: count the days between two dates, plus weeks, months and years. Handy for deadlines, countdowns and project plans.",
      "keywords": [
        "days between dates",
        "date difference calculator",
        "how many days until",
        "date duration calculator",
        "days between two dates"
      ],
      "endpoint": "/api/calc/date-difference"
    },
    {
      "slug": "date-add",
      "name": "Date Add / Subtract Calculator",
      "category": "time",
      "description": "Add days to a date or subtract them to find a past date. See what date it is 30, 90 or any number of days from today or from any start date.",
      "keywords": [
        "add days to date",
        "date calculator",
        "90 days from today",
        "30 days from date",
        "subtract days from date"
      ],
      "endpoint": "/api/calc/date-add"
    },
    {
      "slug": "length-converter",
      "name": "Length Converter",
      "category": "conversion",
      "description": "Length converter for meters, feet, inches, centimeters, kilometers, miles and yards. Convert any length or distance unit to another in one step.",
      "keywords": [
        "length converter",
        "meters to feet",
        "cm to inches",
        "km to miles",
        "feet to meters",
        "distance converter"
      ],
      "endpoint": "/api/calc/length-converter"
    },
    {
      "slug": "weight-converter",
      "name": "Weight Converter",
      "category": "conversion",
      "description": "Weight converter for kilograms, pounds, ounces, grams, stone and tonnes. Convert kg to lbs or any other pair of weight units with exact factors.",
      "keywords": [
        "weight converter",
        "kg to lbs",
        "lbs to kg",
        "grams to ounces",
        "stone to pounds",
        "mass converter"
      ],
      "endpoint": "/api/calc/weight-converter"
    },
    {
      "slug": "temperature-converter",
      "name": "Temperature Converter",
      "category": "conversion",
      "description": "Temperature converter for Celsius, Fahrenheit and Kelvin. Convert C to F, F to C or either to Kelvin, with the exact conversion formula shown.",
      "keywords": [
        "temperature converter",
        "celsius to fahrenheit",
        "fahrenheit to celsius",
        "c to f",
        "kelvin converter"
      ],
      "endpoint": "/api/calc/temperature-converter"
    },
    {
      "slug": "numbers-to-words",
      "name": "Numbers to Words Converter",
      "category": "math",
      "description": "Numbers to words converter: type a number like 1234 and get it spelled out in English words, including decimals and negative values.",
      "keywords": [
        "numbers to words",
        "number to words",
        "spell out a number",
        "write a number in words",
        "digits to words"
      ],
      "endpoint": "/api/calc/numbers-to-words"
    },
    {
      "slug": "roman-numerals",
      "name": "Roman Numeral Converter",
      "category": "math",
      "description": "Roman numeral converter that works both ways: turn a number like 2024 into MMXXIV, or a Roman numeral back into a number.",
      "keywords": [
        "roman numeral converter",
        "roman numerals",
        "number to roman numerals",
        "roman numeral to number",
        "mmxxiv"
      ],
      "endpoint": "/api/calc/roman-numerals"
    },
    {
      "slug": "percent-of",
      "name": "What Percent Is X of Y",
      "category": "math",
      "description": "Find what percent one number is of another, for example 30 is what percent of 200. Shows the percentage and the working.",
      "keywords": [
        "what percent of",
        "x is what percent of y",
        "percentage of a number",
        "percent of total"
      ],
      "endpoint": "/api/calc/percent-of"
    },
    {
      "slug": "square-footage",
      "name": "Square Footage Calculator",
      "category": "geometry",
      "description": "Square footage calculator: enter length and width in feet to get the area in square feet, square meters and acres for rooms, floors and land.",
      "keywords": [
        "square footage calculator",
        "square feet",
        "sq ft calculator",
        "area in square feet",
        "room square footage"
      ],
      "endpoint": "/api/calc/square-footage"
    },
    {
      "slug": "hours",
      "name": "Hours Calculator",
      "category": "time",
      "description": "Hours calculator that counts the time between a start and end time, minus any break, and shows the total in hours and minutes and as decimal hours.",
      "keywords": [
        "hours calculator",
        "time duration calculator",
        "hours between two times",
        "time card calculator",
        "work hours"
      ],
      "endpoint": "/api/calc/hours"
    },
    {
      "slug": "gpa",
      "name": "GPA Calculator",
      "category": "math",
      "description": "GPA calculator on the 4.0 scale. Enter each course grade and its credit hours to get your weighted grade point average and total credits.",
      "keywords": [
        "gpa calculator",
        "grade point average",
        "college gpa",
        "weighted gpa",
        "4.0 scale"
      ],
      "endpoint": "/api/calc/gpa"
    },
    {
      "slug": "fraction",
      "name": "Fraction Calculator",
      "category": "math",
      "description": "Fraction calculator to add, subtract, multiply or divide two fractions. Get the answer as a simplified fraction, a mixed number and a decimal.",
      "keywords": [
        "fraction calculator",
        "add fractions",
        "subtract fractions",
        "multiply fractions",
        "divide fractions"
      ],
      "endpoint": "/api/calc/fraction"
    },
    {
      "slug": "salary",
      "name": "Salary Calculator",
      "category": "financial",
      "description": "Salary calculator to convert pay between hourly, weekly, monthly and yearly. Enter an amount and your hours to see the equivalent hourly wage or annual salary.",
      "keywords": [
        "salary calculator",
        "hourly to salary",
        "salary to hourly",
        "annual salary",
        "hourly wage"
      ],
      "endpoint": "/api/calc/salary"
    },
    {
      "slug": "inflation",
      "name": "Inflation Calculator",
      "category": "financial",
      "description": "Inflation calculator that projects how prices and purchasing power change over time at a given annual inflation rate.",
      "keywords": [
        "inflation calculator",
        "purchasing power",
        "future cost",
        "value of money over time"
      ],
      "endpoint": "/api/calc/inflation"
    },
    {
      "slug": "bac",
      "name": "Blood Alcohol Content (BAC) Calculator",
      "category": "health",
      "description": "Estimate blood alcohol content (BAC) from drinks, body weight, sex and time using the Widmark formula. An estimate only, never a guide to whether it is safe to drive.",
      "keywords": [
        "bac calculator",
        "blood alcohol content",
        "alcohol calculator",
        "widmark formula"
      ],
      "endpoint": "/api/calc/bac"
    }
  ],
  "docs": "https://moltcalc.com/docs"
}