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Calculator Tools

Calculators for arithmetic, finance, health, grades, measurements, taxes, loans, and other formula-based tasks. Enter the values a calculation needs and review the result with its units or assumptions.

Calculator Tools

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BMR Calculator

Estimate your basal metabolic rate in kcal per day from age, sex, height, and weight, using the Mifflin-St Jeor, Revised Harris-Benedict, or Katch-McArdle equation, with a daily calorie table for five activity levels.

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Compound Interest Calculator

Calculate compound growth from a starting balance, regular contributions, an interest rate, and a compounding frequency. See future value, total interest, APY, inflation and tax adjusted results, a growth chart, and a year-by-year breakdown, all in your browser.

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