Fast Unit Converter Hub
Fast and accurate unit conversions for weight, length, volume, temperature, area, time, and currency.
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Temperature, volume, area, time and currency conversions work right in the converter at the top of this page.
Quick reference: common conversions
| Conversion | Equals |
|---|---|
| 1 kilogram | 2.20462 pounds |
| 1 pound | 0.453592 kilograms |
| 1 ounce | 28.3495 grams |
| 1 mile | 1.60934 kilometers |
| 1 kilometer | 0.621371 miles |
| 1 foot | 0.3048 meters |
| 1 inch | 2.54 centimeters |
| 1 US gallon | 3.78541 liters |
| 1 acre | 4,046.86 square meters |
| 0 °C | 32 °F |
| 37 °C (body temperature) | 98.6 °F |
Temperature works differently from other units because the scales start at different points. The formula is °F = (°C × 9/5) + 32. The inch, foot, pound and ounce values come from exact international definitions; the others are rounded to six significant figures. Our volume converter uses US gallon. The UK (imperial) gallon is different from the US gallon with 1 UK gallon = 4.54609 liters .
Why use Fast Unit Converter Hub?
Exact, checkable results
Every converter uses internationally defined conversion factors, and each converter page shows its formula so you can check the answer yourself.
East African currencies
Live exchange rates for USD, EUR and GBP, plus the Rwandan franc (RWF) and Kenyan shilling (KES), which many converters leave out.
Free and instant
No sign-up and no app to install. It works on any phone or computer.
Frequently asked questions
Is Fast Unit Converter Hub free?
Yes. Every converter is free to use, with no account or sign-up.
How accurate are the conversions?
Each converter uses the official definitions. For example, 1 inch is exactly 2.54 centimeters and 1 pound is exactly 0.45359237 kilograms. Results are rounded for display, so for engineering or medical work, check them against an official source.
Will my bank give me the same exchange rate?
Usually not. We show the mid-market rate, which is halfway between the buying and selling price. Banks and money-transfer services add a margin, so the rate they offer is normally a little less favorable.
Can you add a converter I need?
Yes. Tell us which units you need through our Contact page.