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Unit Converter – Length, Weight, Temperature, Area, Volume, Speed, Time & Data (Free Online)

Unit Converter – Length, Weight, Temperature, Area, Volume, Speed, Time & Data (Free Online)

Use this fast Unit Converter to convert between length, weight, temperature, area, volume, speed, time, and data. Instant results, swap units, copy output, and add custom values. Everything runs in your browser—no uploads.

Convert Units

Auto-converts as you type or change units.

Supported Unit Categories

  • Length: mm, cm, m, km, inch, foot, yard, mile
  • Weight/Mass: mg, g, kg, tonne, ounce, pound
  • Temperature: °C, °F, K
  • Area: mm², cm², m², km², in², ft², yd², acre, hectare
  • Volume: mL, L, m³, tsp, tbsp, cup, pint, quart, gallon
  • Speed: m/s, km/h, mph, knot
  • Time: ms, s, min, hour, day, week
  • Data: B, KB, MB, GB, TB (decimal) • KiB, MiB, GiB, TiB (binary)

How to Use the Unit Converter

  1. Choose a Category (e.g., Length or Temperature).
  2. Enter the Value and select the From and To units.
  3. Click Convert (or just type—conversion is automatic).
  4. Use Swap to quickly reverse units and recalculate.

FAQ – Unit Converter

Does this work offline?

Yes. The converter is pure JavaScript and runs in your browser. No internet needed after the page loads.

What’s the difference between KB and KiB?

KB is decimal (1 KB = 1000 bytes). KiB is binary (1 KiB = 1024 bytes). The tool supports both.

Are cooking measurements supported?

Yes. Use the Volume category (teaspoon, tablespoon, cup, pint, quart, gallon, liter, milliliter).

Can I convert currency?

This tool focuses on physical units. Currency needs live exchange rates, which change frequently.

Conclusion

Use this free Unit Converter for quick, accurate conversions across everyday categories—perfect for students, professionals, travelers, and developers.

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