Unit and currency converter
Convert everyday measurements without doing the maths. Pick a category, choose the two units, type a value and the answer appears straight away.
Four categories
- Length: meter, kilometer, centimeter, millimeter, mile, yard, foot and inch.
- Weight: kilogram, gram, milligram, metric tonne, pound and ounce.
- Temperature: Celsius, Fahrenheit and Kelvin.
- Currency: OMR, USD, PKR, INR, EUR, GBP, AED, SAR, BHD, QAR, KWD, JPY, CAD and AUD.
How to use it
- Choose a category tab.
- Select the unit you have and the unit you want.
- Enter the value. The result updates as you type.
- Use the swap button to reverse the two units.
Handy reference values
| Conversion | Value |
|---|---|
| 1 inch | 2.54 cm |
| 1 mile | 1.609344 km |
| 1 foot | 0.3048 m |
| 1 pound | 0.45359237 kg |
| 1 ounce | 28.35 g |
| 0 °C | 32 °F and 273.15 K |
| 100 °C | 212 °F and 373.15 K |
Temperature is different
Length and weight need only a multiplication, but temperature scales start at different points. To change Celsius to Fahrenheit, multiply by 9/5 and add 32. To get Kelvin, add 273.15 to the Celsius value. So normal body temperature of 37 °C is 98.6 °F.
About currency rates
The currency tab tries to load current reference rates when the page opens, and uses stored approximate rates if it cannot. These rates are for general guidance. Banks, money exchanges and payment apps add fees and use their own rates, so check the exact figure before sending money. Some Gulf currencies, such as the Omani rial, UAE dirham, Saudi riyal, Bahraini dinar and Qatari riyal, are pegged to the US dollar, so their rates against the dollar barely move.
See our guide to common unit conversions for more examples.
Real-life examples
A recipe asks for 8 oz of flour, which is about 227 g. An airline allows 23 kg of luggage, which is about 50.7 lb. A 5 km run is roughly 3.1 miles. An oven set to 180 °C is 356 °F. Having the converter open on your phone makes shopping abroad, following overseas recipes and reading product labels much easier.
Frequently asked questions
How accurate are the conversions?
Length, weight and temperature use exact standard definitions. Currency is approximate.
Can I convert in both directions?
Yes. Use the swap button or change the two unit menus.
Is it free?
Yes, with no sign-up and no limit.
Related pages
Common unit conversions made simple
Quick reference and tips.
Basic calculator
Everyday sums.
Converter FAQ
14 quick answers.
Related blog posts and countries
Read all how-to posts. Local guides: Pakistan · India · United States.