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Free Online Converters

Convert between units instantly — length, weight, temperature, currency, and more. Live results with formulas.

7 CategoriesInstant ResultsFormula DisplayReference Tables100% FreeNo Sign-up
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Currency Converter

Free online currency converter with live ECB exchange rates. Convert USD to INR, EUR, GBP, JPY and 30+ currencies instantly. Compare up to 10 currencies simultaneously with real-time rates.

currency converterusd to inrusd to eurexchange rate
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Weight Converter

Convert instantly between Kilograms, Pounds, Ounces, Grams, Stone, Carats, and 12 weight units with real-time results, formula display, and multi-unit reference table.

kg to lbslbs to kgweight convertermass converter
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Length Converter

Convert between Meters, Feet, Inches, Miles, Kilometers, Yards, and 12 length units with instant results, formula display, and multi-unit reference table.

length convertercm to inchesinches to cmmeters to feet
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Temperature Converter

Convert accurately between Celsius, Fahrenheit, Kelvin, and Rankine with instant results, conversion formula display, and visual temperature scale.

celsius to fahrenheitfahrenheit to celsiustemperature converterkelvin to celsius
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Area Converter

Convert between Square Meters, Square Feet, Acres, Hectares, and 10 area units with instant results, formula display, and multi-unit reference table.

area convertersquare meters to square feetsqft to sqmacres to hectares
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Volume Converter

Convert between Liters, Gallons, Cups, Fluid Ounces, and 12 volume units with instant results, formula display, and multi-unit reference table.

volume converterliters to gallonsgallons to litersml to oz
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Speed Converter

Convert between km/h, mph, m/s, knots, Mach, and the speed of light with instant results and formula display.

speed converterkm/h to mphmph to km/hknots to mph
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Data Storage Converter

Convert between Bytes, KB, MB, GB, TB, PB, and binary units (KiB, MiB, GiB, TiB) with instant results and formula display.

data convertergb to mbmb to gbtb to gb
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Why Use ToolsMint Converters?

100% Free Forever

All tools are completely free with no daily limits, no watermarks, and no premium tiers. Use as much as you want.

Complete Privacy

Everything runs in your browser using client-side JavaScript. Your data never leaves your device — no uploads, no server processing.

No Signup Required

Start using any tool instantly. No accounts, no email verification, no passwords to remember.

Works on Any Device

Responsive design works perfectly on desktop, tablet, and mobile. All you need is a modern web browser.

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