Convert units of measurement instantly. Length, weight, temperature, speed, area, volume, and more. Free, no signup.
Convert between different units of measurement
Convert between metric and imperial length measurements
A unit converter is a tool that transforms a measurement expressed in one unit into its equivalent value in another unit within the same category. For example, converting 5 kilometres to miles, 100°C to Fahrenheit, or 10 kg to pounds. ToolsWallet's unit converter supports over 100 unit combinations across length, mass/weight, temperature, speed, area, volume, pressure, energy, and digital data — with instant results and no signup required.
📏 Length & Distance
Metre, kilometre, mile, foot, inch, yard, centimetre, millimetre, nautical mile
⚖️ Weight & Mass
Kilogram, gram, pound, ounce, tonne, milligram, stone, quintal
🌡️ Temperature
Celsius, Fahrenheit, Kelvin — with full formula explanations
💨 Speed
km/h, m/s, mph, knots, feet per second
📐 Area
Square metre, acre, hectare, square foot, square kilometre, square mile
🧴 Volume
Litre, millilitre, gallon (US/UK), cubic metre, fluid ounce, cup, pint
💾 Data Storage
Bit, byte, kilobyte, megabyte, gigabyte, terabyte, petabyte
⚡ Energy
Joule, calorie, kilowatt-hour, BTU, electronvolt
Select a category
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Select source and target units
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| Conversion | Formula / Value |
|---|---|
| 1 mile → km | 1 mile = 1.60934 km |
| 1 kg → lbs | 1 kg = 2.20462 lbs |
| °C → °F | °F = (°C × 9/5) + 32 |
| 1 inch → cm | 1 inch = 2.54 cm |
| 1 acre → sq ft | 1 acre = 43,560 sq ft |
| 1 gallon (US) → litres | 1 US gallon = 3.78541 litres |
| 1 GB → MB | 1 GB = 1,024 MB |
| 1 knot → km/h | 1 knot = 1.852 km/h |
How many metres are in a kilometre?
1 kilometre (km) = 1,000 metres (m). To convert km to metres, multiply by 1,000.
How do I convert Celsius to Fahrenheit?
Use the formula: °F = (°C × 9/5) + 32. For example, 37°C (body temperature) = (37 × 9/5) + 32 = 98.6°F.
How many kilograms in a quintal?
1 quintal = 100 kilograms. This is a common weight unit used in agricultural trade across India and South Asia.
How many litres in a gallon?
1 US gallon = 3.785 litres. 1 Imperial (UK) gallon = 4.546 litres. The two types of gallon give different results.
How many megabytes in a gigabyte?
1 gigabyte (GB) = 1,024 megabytes (MB) in binary (computing) terms. In decimal terms (used by storage manufacturers), 1 GB = 1,000 MB.