Converters
Unit Converter
Unit Converter is part of Toolspire and is ready as soon as this page loads. Convert between 140+ units in 15 categories, from centimetres and pounds to guntha, cent, tola and crore — or just type a conversion like “5 ft 10 in to cm” or “72 F to C”.
On this page
What you can do here
Type to convert
Write conversions the way you say them, including feet-and-inches and °F to °C.
Exact factors
Legal definitions of the inch, pound and gallon, so results match textbooks and spec sheets.
Land units of India
Guntha, cent, ground, marla, kanal and gaj alongside acres, hectares and square feet.
All units at once
One value shown in every unit of the category — copy any of them with a click.
Binary and decimal data
GB and GiB, MB and MiB, megabits and megabytes — clearly separated.
Remembers your choice
Your last category, units and number style are kept on this device.
The sequence
How to convert units
- 1
Pick a category
Choose length, weight, area or another quantity — or type a conversion in the box at the top.
- 2
Enter a value
Type the number and choose the units to convert from and to. Press ⇄ to swap them.
- 3
Read and copy
The answer appears straight away with its formula. Copy it, or see the value in every other unit below.
Worth knowing
- Unit Converter on Toolspire: 15 categories: length, weight, temperature, area, volume, speed, time, data storage, pressure, energy, power, fuel economy, angle, frequency and lakh/crore numbers.
- Uses the exact definitions: 1 inch = 2.54 cm, 1 foot = 0.3048 m, 1 pound = 0.45359237 kg, 1 US gallon = 3.785411784 litres.
- Indian units: guntha, cent, ground, marla, kanal, gaj (square yard), bigha and katha (West Bengal), tola and quintal, lakh and crore.
- Type a conversion in plain words — “5 ft 10 in to cm”, “100 kmph in mph”, “1.5 ton to kW” (AC tonnage) — and get the answer straight away.
- See the value in every unit of a category at once, with the formula, adjustable precision and Indian (12,34,567) or international number grouping.
Common conversions
| From | To | Multiply by |
|---|---|---|
| inches | centimetres | 2.54 |
| feet | metres | 0.3048 |
| miles | kilometres | 1.609344 |
| pounds | kilograms | 0.45359237 |
| acres | square feet | 43,560 |
| hectares | acres | 2.47105 |
| square yards (gaj) | square feet | 9 |
| guntha | square feet | 1,089 |
| US gallons | litres | 3.785411784 |
| °C | °F | × 9/5, then + 32 |
Indian land measurement units
Land is still measured in local units in much of India. This converter uses these sizes: 1 guntha = 1,089 sq ft (Maharashtra, Karnataka, Telangana), 1 cent = 435.6 sq ft (1/100 acre, used in South India), 1 ground = 2,400 sq ft (Tamil Nadu), 1 marla = 272.25 sq ft and 1 kanal = 20 marla = 5,445 sq ft (Punjab, Haryana), and 1 gaj = 1 sq yard = 9 sq ft.
The bigha and katha differ from state to state, and even between districts. The converter uses the West Bengal and Assam sizes (1 bigha = 14,400 sq ft, 1 katha = 720 sq ft) — for the bigha, biswa or katha of your own state, use the Land Area Converter, and check the local value with your land records office before a sale.
FAQ
Questions about Unit Converter
Where does Unit Converter run?
How many cm is 5 feet 10 inches?
How do I convert Celsius to Fahrenheit?
How many square feet are in a guntha, acre or bigha?
What is the difference between GB and GiB?
How do I convert lakh and crore to million?
What does an AC “ton” mean?
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