Basic / Simple Calculator Online
Add, subtract, multiply, divide — with history and keyboard support
Loading…
Loading…
Twelve calculators that run entirely in your browser: percentage, tip, discount, and average for everyday math; EMI, simple interest, and compound interest for illustrative finance estimates; age and date difference for calendar spans; BMI for a screening estimate; plus basic and scientific keypads. Free, private, and no sign-up. For unit conversion, use Converters (linked below).
by NeedAnyToolAdd, subtract, multiply, divide — with history and keyboard support
Trig, logs, powers, roots, and factorial — DEG/RAD mode
Percent of a number, reverse percent, percent change, and increase or decrease
Tip amount, bill total, and the split between people
Sale price and amount saved from a percent off
Mean, median, mode, min, max, sum, and count from a list
Loan amount, rate, and tenure to monthly EMI — illustrative estimates, not financial advice
Interest and total amount with I = P × R × T / 100
Compound growth with yearly to daily compounding
Exact age in years, months, and days, plus days to your next birthday
Calendar span between two dates in days, months, and years
Body mass index with WHO adult categories — not medical advice
Image and PDF conversion tools live in their own categories — we link them here instead of duplicating pages.
Length, weight, temperature, and more — in Converters
Epoch ↔ human dates — in Converters
Decimal, hex, binary, octal — in Converters
Words, characters, reading time — in Text Tools
Data never leaves your browser.
Results in milliseconds.
No server upload ever.