21 Calories to BTUs

Instantly convert 21 Calories to BTUs. Free online converter.

21 Calories = 0.083279 BTUs
21 cal = 0.083279 BTU

Convert Another Value

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BTU
21 cal = 0.083279 BTU

More Calories to BTUs Conversions

1 cal = 0.0039656512 BTU 2 cal = 0.0079313025 BTU 5 cal = 0.019828 BTU 10 cal = 0.039657 BTU 15 cal = 0.059485 BTU 20 cal = 0.079313 BTU 25 cal = 0.099141 BTU 50 cal = 0.198283 BTU
View all Calories to BTUs conversions
← 20 cal = 0.079313 BTU 22 cal = 0.087244 BTU →

How to Convert 21 Calories to BTUs

1

Know the conversion factor

1 Calorie equals 0.0039656512 BTUs.

2

Multiply your value

Take your value (21) and multiply it by 0.0039656512.

21 × 0.0039656512
3

Get your result

The result is 0.083279 BTUs.

21 cal = 0.083279 BTU

Frequently Asked Questions

How many BTUs is 21 Calories?

21 Calories is equal to 0.083279 BTUs.

How do I convert 21 Calories to BTUs?

To convert Calories to BTUs, multiply the value by 0.0039656512. So, 21 cal × 0.0039656512 = 0.083279 BTU.

What is the formula to convert Calories to BTUs?

The formula is: BTU = cal × 0.0039656512. For example, 21 cal = 0.083279 BTU.

How many Calories is 0.083279 BTUs?

0.083279 BTUs is equal to 21 Calories. This is the reverse conversion.

About These Units

cal Calorie Learn more → BTU BTU Learn more →

Quick Facts

Conversion Formula

BTU = cal × 0.0039656512

Reverse Conversion

0.083279 BTUs = 21 Calories

Convert reverse →