Free · No sign-up · Runs in your browser
Free online calculators & everyday tools
Fast, clean and privacy-first. Pick a tool, get your answer instantly — no downloads, no accounts.
No sign-up, ever
Every tool is free and instant — no account, no email, no paywall.
Private by design
Calculations run in your browser. Nothing you type is uploaded or stored.
Instant, accurate results
Live results as you type, built on standard, well-documented formulas.
Finance
Finance tools
Loans, tips, percentages and everyday money math.
Percentage Calculator
Percent of a number, reverse percent, and percent change.
Loan Calculator
Monthly payment, total interest and total cost.
Tip Calculator
Tip, total and split per person.
Mortgage Calculator
Monthly mortgage payment and total interest.
Discount Calculator
Sale price and money saved from any discount.
Health & Fitness
Health & Fitness tools
BMI, calories and body metrics, calculated instantly.
Home & DIY
Home & DIY tools
Estimate materials for your next project.
Converters
Converters tools
Length, weight and temperature in one place.
Text Tools
Text Tools tools
Count, clean and generate text and passwords.
Everyday
Everyday tools
Dates, ages and quick random picks.