๐Ÿ“ Universal Conversion

Free Online Unit Converters

Convert length, area, volume, mass, temperature, speed, energy, and 10+ more measurement categories - instantly in your browser. Formula-driven accuracy, zero data collection.

19
Categories
200+
Unit Conversions
100%
Free
0
Data Stored
โ€” Categories โ€”

All Measurement Categories

19 categories covering every unit conversion you'll ever need - from everyday measurements to scientific units.

๐Ÿ“

Length

Live
Convert between meters, kilometers, miles, inches, feet, yards, nautical miles, light-years, and 20+ more units.
m โ†” km in โ†” cm mi โ†” km ft โ†” m
Explore 27 units
๐Ÿ“

Area

Soon
Convert between square meters, acres, hectares, square feet, square miles, and more area measurements.
mยฒ โ†” ftยฒ acre โ†” ha kmยฒ โ†” miยฒ
Coming Soon
๐Ÿงช

Volume

Soon
Convert between liters, gallons, milliliters, cups, pints, quarts, fluid ounces, and cubic units.
L โ†” gal mL โ†” oz cup โ†” mL
Coming Soon
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Mass / Weight

Soon
Convert between kilograms, pounds, grams, ounces, tons, stones, milligrams, and more weight units.
kg โ†” lb g โ†” oz ton โ†” kg
Coming Soon
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Temperature

Soon
Convert between Celsius, Fahrenheit, Kelvin, and Rankine. Includes common reference temperatures.
ยฐC โ†” ยฐF ยฐC โ†” K ยฐF โ†” K
Coming Soon
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Speed

Soon
Convert between km/h, mph, m/s, knots, Mach, speed of light, and more velocity units.
km/h โ†” mph m/s โ†” km/h knot โ†” mph
Coming Soon
โฑ๏ธ

Time

Soon
Convert between seconds, minutes, hours, days, weeks, months, years, milliseconds, and more time units.
hr โ†” min day โ†” hr yr โ†” day
Coming Soon
๐Ÿ”ง

Pressure

Soon
Convert between Pascal, bar, atm, PSI, Torr, mmHg, kPa, and more pressure units.
Pa โ†” bar PSI โ†” atm kPa โ†” mmHg
Coming Soon
โšก

Energy

Soon
Convert between Joules, calories, kilowatt-hours, BTU, electron volts, and more energy units.
J โ†” cal kWh โ†” J BTU โ†” kJ
Coming Soon
๐Ÿ’ก

Power

Soon
Convert between Watts, kilowatts, horsepower, BTU/h, megawatts, and more power measurements.
W โ†” kW HP โ†” kW BTU/h โ†” W
Coming Soon
๐Ÿ’ช

Force

Soon
Convert between Newtons, pound-force, dynes, kilogram-force, and more force units.
N โ†” lbf kgf โ†” N dyn โ†” N
Coming Soon
๐Ÿ“

Angle

Soon
Convert between degrees, radians, gradians, turns, arcminutes, arcseconds, and more angle units.
ยฐ โ†” rad ยฐ โ†” grad turn โ†” ยฐ
Coming Soon
โ›ฝ

Fuel Economy

Soon
Convert between MPG, km/L, L/100km, and other fuel consumption and efficiency units.
MPG โ†” km/L L/100km โ†” MPG
Coming Soon
๐Ÿ’พ

Data Storage

Soon
Convert between bytes, KB, MB, GB, TB, PB, bits, and both binary (KiB) and decimal units.
MB โ†” GB bit โ†” byte TB โ†” GB
Coming Soon
๐Ÿ’ฑ

Currency

Soon
Convert between USD, INR, EUR, GBP, JPY, and 100+ currencies with live exchange rates.
USD โ†” INR EUR โ†” GBP JPY โ†” USD
Coming Soon
๐Ÿ”Š

Frequency

Soon
Convert between Hertz, kHz, MHz, GHz, RPM, cycles per second, and more frequency units.
Hz โ†” kHz MHz โ†” GHz RPM โ†” Hz
Coming Soon
๐Ÿ”Œ

Electric Current

Soon
Convert between Amperes, milliamperes, microamperes, kiloamperes, and more current units.
A โ†” mA ยตA โ†” mA kA โ†” A
Coming Soon
๐Ÿ”‹

Voltage

Soon
Convert between Volts, millivolts, kilovolts, megavolts, and more electric potential units.
V โ†” mV kV โ†” V MV โ†” kV
Coming Soon
โš™๏ธ

Resistance

Soon
Convert between Ohms, kilohms, megohms, milliohms, and more electrical resistance units.
ฮฉ โ†” kฮฉ Mฮฉ โ†” kฮฉ mฮฉ โ†” ฮฉ
Coming Soon
โ€” How It Works โ€”

Convert in 3 Steps

1
Pick a Category
Select from 19 measurement categories - length, mass, temperature, energy, and more.
2
Enter Your Value
Type a number and select source and target units. Results update as you type - no submit button needed.
3
Get Instant Results
See the converted value with full precision. Copy results or swap units with one click.
โ€” Why Us โ€”

Built Different

A tool-first platform, not a content blog. Every feature follows strict design and calculation principles.

๐ŸŽฏ
Formula-Driven Accuracy
Every conversion uses verified mathematical formulas - no guesswork, no approximations, no rounding errors.
๐Ÿ”’
100% Private
All calculations run locally in your browser. No data sent to servers, no cookies, no tracking whatsoever.
โšก
Instant Real-Time
Results update as you type - no submit buttons, no loading spinners, no page reloads. Millisecond response.
๐Ÿ“ฑ
Works Everywhere
Desktop, tablet, or phone. Chrome, Firefox, Safari, Edge. Fully responsive on every screen size.
๐Ÿšซ
No Login Required
Zero sign-up, zero email walls, zero premium tiers. Open any tool and start converting immediately.
๐Ÿ“Š
Built to Scale
19 categories, 200+ unit combinations, growing regularly. New tools added monthly - all free, all maintained.
โ€” Who It's For โ€”

Built for Everyone

From students solving homework to engineers designing systems.

Students & Teachers
Engineers & Scientists
Developers & Data Analysts
Travelers & Expats
Cooks & Bakers
DIY & Home Improvement
Fitness & Nutrition
Real Estate & Construction
FAQ

Frequently Asked Questions

How many unit categories do you support?
We currently support 19 measurement categories: Length, Area, Volume, Mass, Temperature, Speed, Time, Pressure, Energy, Power, Force, Angle, Fuel Economy, Data Storage, Currency, Frequency, Electric Current, Voltage, and Resistance. More are being added regularly.
Are these conversions accurate?
Yes. Every conversion uses verified mathematical formulas based on internationally recognized standards (SI, Imperial, US Customary). Results are computed with full floating-point precision.
Are the converters free to use?
100% free with no limits. No sign-up, no premium plans, no ads-before-results. Every tool is completely free forever.
Is my data safe?
All calculations happen locally in your browser using JavaScript. Nothing is sent to any server. We don't collect, store, or track any of your input values.
Do converters work offline?
Once the page loads, most converters work offline since all computation is client-side. The only exception is Currency Converter, which requires live exchange rate data from the internet.
Can I convert between metric and imperial?
Yes. All relevant categories support both metric (SI) and imperial/US customary units. For example, Length supports meters, kilometers, inches, feet, yards, and miles simultaneously.
Do you support scientific/obscure units?
Yes. Beyond common units, we include scientific units like Parsec, Astronomical Unit, Light-year (Length), electron volt (Energy), and historical units like Cubit, Fathom, and Furlong.
โ€” Explore More โ€”

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