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45 free calculators for finance, health, school, and everyday life. No signup, no ads, just answers.
Popular Calculators
The tools people use most
Mortgage Calculator
Calculate your monthly mortgage payments, including property tax and insurance
Compound Interest Calculator
Calculate compound interest growth with regular contributions, multiple compounding frequencies, and a year-by-year breakdown
Calorie Deficit Calculator
Calculate your daily calorie needs for weight loss with personalized TDEE and timeline predictions
Home Affordability Calculator
Estimate how much house you can afford using income, debt, taxes, insurance, HOA, and mortgage assumptions
Grade Calculator
Calculate your current class grade with weighted or points-based assignments, quizzes, exams, and projects
Take-Home Pay Calculator
Calculate your net paycheck after federal taxes, state taxes, Social Security, Medicare, and pre-tax deductions
BMI Calculator
Calculate your Body Mass Index and understand your weight status
Amortization Calculator
Build a loan amortization schedule, compare principal versus interest, and test extra payment strategies
Fraction Calculator
Add, subtract, multiply, and divide fractions and mixed numbers with simplified results and decimal conversions
Hours Calculator
Calculate hours worked between two times, subtract breaks, and estimate daily or weekly pay for any shift
TDEE Calculator
Calculate your Total Daily Energy Expenditure, BMR, calorie targets, and macronutrient breakdown
Sales Tax Calculator
Calculate sales tax rates, before-tax and after-tax prices for your purchases
Browse by Category
Finance Calculators
11 toolsPlan retirement, evaluate financial health, compare payoff paths, and run investment growth scenarios.
Health Calculators
9 toolsTrack BMI, calorie deficits, BMR, BAC estimates, ovulation timing, and pregnancy timelines with clear assumptions.
Loan Calculators
7 toolsCompare mortgage, affordability, amortization, auto, personal, student-loan, and payoff scenarios before you commit.
General Calculators
18 toolsEveryday utility tools for grades, fractions, concrete estimates, hours worked, percentages, dates, tips, and more.