How many Calorie are in one British thermal unit?

One British thermal unit equals 252.1644007 cal. Enter any amount above to get an exact figure for your own value.

Is this converter accurate?

Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.

Do you upload the numbers I enter?

No. The British thermal unit to Calorie conversion runs entirely in your browser tab, and nothing you type is sent to a server.

Does it work on my phone?

Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

All converters

British thermal unit to Calorie

Convert British thermal unit to Calorie and get the exact value instantly.

British thermal unit (BTU)Calorie (cal)252.1644007

1 BTU = 252.1644007 cal

Related conversions

British thermal unit → Joule British thermal unit → Kilojoule British thermal unit → Megajoule British thermal unit → Gigajoule British thermal unit → Kilocalorie British thermal unit → Watt hour British thermal unit → Kilowatt hour British thermal unit → Electronvolt

About this conversion

To convert British thermal unit to Calorie, multiply the number of British thermal unit by 252.1644007.

Energy shows up as joules, calories, kilowatt-hours or BTU depending on the field (nutrition, an electricity bill, heating or physics), so a conversion makes the numbers comparable.

Conversion table

British thermal unit (BTU)	Calorie (cal)
1 BTU	252.1644007 cal
2 BTU	504.3288014 cal
5 BTU	1260.822004 cal
10 BTU	2521.644007 cal
100 BTU	25216.44007 cal

How to use this converter

Enter your British thermal unit value
Type any number into the British thermal unit field. It starts at 1 so you can read the rate straight away.
Read the Calorie result
The amount in Calorie updates as you type, so there is no button to press and nothing to wait for.
Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.

Frequently asked

How many Calorie are in one British thermal unit?: One British thermal unit equals 252.1644007 cal. Enter any amount above to get an exact figure for your own value.
Is this converter accurate?: Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
Do you upload the numbers I enter?: No. The British thermal unit to Calorie conversion runs entirely in your browser tab, and nothing you type is sent to a server.
Does it work on my phone?: Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

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