Unit Converter
Convert length, weight, temperature, area, volume and speed. Pick a category, enter a value, and choose the units to convert from and to. The weight list includes the tola.
Results are rounded to a sensible number of digits. For land in marla and kanal, use our Marla, Kanal and Square Feet Calculator.
How it works
Every unit in a category has a fixed relationship to one base unit, such as the metre for length or the kilogram for weight. The calculator converts your value to the base unit and then to the unit you want. Temperature is different, because the scales do not start at the same zero, so it uses its own formulas.
Formulas
- Fahrenheit = Celsius × 9 ÷ 5 + 32
- Celsius = (Fahrenheit − 32) × 5 ÷ 9
- Kelvin = Celsius + 273.15
- For other units: value × (from factor ÷ to factor), using the base unit of the category.
Common conversions
| Conversion | Value |
|---|---|
| 1 inch | 2.54 cm |
| 1 mile | 1.609344 km |
| 1 kg | 2.20462 lb |
| 1 tola | 11.664 g |
| 1 acre | 43,560 sq ft |
| 1 US gallon | 3.78541 litres |
| 1 UK gallon | 4.54609 litres |
Steps to use it
- Choose a category.
- Enter the value.
- Choose the unit to convert from and the unit to convert to.
- Press Convert. Use Swap units to reverse the conversion.
Examples
| Input | Result |
|---|---|
| 10 miles to kilometres | 16.09344 km |
| 70 kg to pounds | 154.3236 lb |
| 37 °C to °F | 98.6 °F |
| 5 tola to grams | 58.32 g |
| 100 km/h to mph | 62.1371 mph |
Common uses
- Cooking, shopping and travel, where recipes and signs use different units.
- Study and homework in physics, chemistry and geography.
- Checking product sizes and weights listed in a different system.
Frequently asked questions
How many grams are in a tola?
One tola is 11.664 grams. You can also use our Gold Tola Calculator to convert masha and ratti and to value gold.
Why is there a US gallon and a UK gallon?
They are different sizes. A US gallon is about 3.785 litres and a UK (imperial) gallon is about 4.546 litres. Check which one your source uses.
Why can temperature be negative but other values cannot?
Celsius and Fahrenheit have negative values below their zero points. Other units here measure amounts, so the converter asks for zero or more. Temperature below absolute zero (-273.15 °C) is not possible and shows an error.
Are the results exact?
The conversion factors are the standard definitions, and results are rounded for display. For work that needs official precision, use the relevant standard or ask your institution.
Is this professional advice?
No. It is a calculation tool. See our Terms and Disclaimer and How We Test pages.