Basic calculator
Use the keypad or keyboard.
Ready
Calculate it.
Convert it.
Everyday calculations and unit conversions in one simple place.
Open calculator Convert units ↓✓ Free to use ✓ Mobile friendly ✓ No sign-up
01 / CALCULATE
Smart calculator
Quick maths, percentages, discounts and profit or loss.
Percentage & discount
Find a percentage or sale price.
15% of 15022.5
Profit & loss
Compare cost and selling price.
Profit4 (50%)
Percentage is calculated against cost price.
02 / CONVERT
Unit converter
Convert common measurements without doing the maths yourself.
RESULT
1 Meter (m) = 0.3048 Foot (ft)
Length conversions use standard factors.
Currency uses public reference rates from ExchangeRate-API when available. Rates update periodically and may differ from bank or exchange-house rates. If rates cannot load, no made-up rate is shown.
LEARN HOW THEY WORK
Tool guides and articles
Plain-language help for each tool, with examples.
MADE FOR EVERYDAY USELess searching.
Less searching.
More getting done.
SmartCalc Converter brings useful calculations and common unit conversions together in one lightweight website. It works in modern mobile and desktop browsers.
01 Simple
Clear controls and readable results.
02 Responsive
Designed for phones, tablets and computers.
03 Private by design
Basic calculations happen in your browser.