Calculators that help you live better
Fast, accurate, mobile-first calculators for money, health, and time. Hand-tested math. Plain-English results. No dark patterns, no paywalls.
Popular calculators
See all 39 →Mortgage Calculator
Calculate your monthly mortgage payment, total interest, and full amortization schedule. Plain-English results, fast and free.
Auto Loan Calculator
Figure out your car payment, total interest, and the real cost of your auto loan. Include down payment, trade-in, sales tax, and fees.
Compound Interest Calculator
See how compound interest grows your money over time. Compare daily, monthly, quarterly, and annual compounding with regular contributions.
Retirement Calculator
Project your retirement balance and figure out if you're on track. Factors in contributions, employer match, inflation, and desired retirement income.
Salary to Hourly Calculator
Convert between annual salary, weekly, and hourly pay. Account for hours per week, weeks per year, vacation, and holidays.
Credit Card Payoff Calculator
See how long it takes to pay off a credit card balance at a given monthly payment, and how much interest you'll pay along the way.
BMI Calculator
Calculate your Body Mass Index in metric or imperial units. See what the number means and where you land on the WHO scale.
TDEE Calculator (BMR + Calorie Needs)
Calculate your Total Daily Energy Expenditure using the Mifflin-St Jeor equation. Get calorie targets for cutting, maintenance, and bulking.
Age Calculator
Calculate exact age in years, months, days, weeks, hours, and minutes. Also shows days until your next birthday.
Browse by category
Finance
Mortgage, auto loan, compound interest, salary — run the numbers before you commit.
21 calculators
Health
BMI, calorie, and other everyday health calculators.
9 calculators
Time & Date
Date, age, and time utilities.
4 calculators
Conversions
Units, currencies, and everyday conversions.
2 calculators
Math
Simple and scientific calculators for everyday arithmetic and advanced math.
2 calculators
Crypto
Bitcoin, Ethereum, and major crypto prices in your local currency.
1 calculator
Why Calqura
Accurate math
Every calculator is backed by a hand-checked test suite. Same formulas banks and lenders use.
Fast by default
No bloat. No loading screens. Results update as you type, even on a slow phone.
Privacy-first
All calculations run in your browser. Nothing you enter is sent to our servers.