How many Calories are in 1 BTU?

There are exactly 252.165392 Calories (cal) in 1 BTU (BTU). This means that to find the equivalent in Calories, you multiply your BTU value by 252.165392. This conversion factor is used worldwide in science, engineering, and everyday measurements.

What is 10 BTUs in Calories?

10 BTUs (BTU) is exactly 2,521.65392 Calories (cal). This is calculated by applying the standard conversion factor: 1 BTU = 252.165392 cal.

What is 100 BTUs in Calories?

100 BTUs (BTU) is exactly 25,216.5392 Calories (cal). This is calculated by applying the standard conversion factor: 1 BTU = 252.165392 cal.

How do I convert Calories back to BTUs?

To convert Calories to BTUs, divide the value in Calories by 252.165392. For example, 1 cal = 0.003965651243 BTU. You can also use the swap button on the converter above to instantly switch the conversion direction.

Why would I need to convert BTUs to Calories?

Converting BTUs to Calories is commonly needed in international trade, travel, academic studies, engineering projects, and everyday tasks where different measurement systems are used. Many countries use different standard units, making this conversion essential for accurate communication and calculations.

Is BTU bigger than Calorie?

To compare, look at the conversion factor: 1 BTU = 252.165392 cal. If the result is greater than 1, then one BTU is larger than one Calorie. Conversely, 1 cal = 0.003965651243 BTU. Use this relationship to quickly understand the relative size of these two units.

What is the quickest way to convert BTUs to Calories?

The quickest way is to multiply your BTUs value by 252.165392. For a mental math shortcut, remember that 1 BTU is approximately 252.165392 cal. Round this factor to a convenient number for rough estimates, or use the UnitShift converter above for exact results instantly.

How accurate is this BTU to Calorie converter?

This converter uses full floating-point precision (64-bit double precision) for all calculations, ensuring results accurate to approximately 15 significant digits. The conversion factors between BTU and Calorie are based on internationally recognized standards. For everyday use, scientific work, and engineering applications, this level of precision exceeds typical requirements.

BTU → Calorie

From

252.165392cal

Conversion Table

Conversion table from BTU to Calorie
BTU (BTU)	Calorie (cal)
0.001 BTU	0.252165392 cal
0.01 BTU	2.52165392 cal
0.1 BTU	25.2165392 cal
1 BTU	252.165392 cal
2 BTU	504.3307839 cal
3 BTU	756.4961759 cal
4 BTU	1,008.661568 cal
5 BTU	1,260.82696 cal
10 BTU	2,521.65392 cal
15 BTU	3,782.48088 cal
20 BTU	5,043.307839 cal
25 BTU	6,304.134799 cal
50 BTU	12,608.2696 cal
100 BTU	25,216.5392 cal
250 BTU	63,041.34799 cal
500 BTU	126,082.696 cal
1,000 BTU	252,165.392 cal
5,000 BTU	1,260,826.96 cal
10,000 BTU	2,521,653.92 cal

Formula

To convert BTUs to Calories, multiply the value by 252.165. For example, 5 BTU equals 1,260.82696 cal. You can also use UnitShift's free online converter above for instant, accurate results without manual calculation.

BTU → Calorie: multiply the value by 252.165

1 BTU = 252.165392 cal. To convert BTUs to Calories, multiply the btu value by 252.165392.

Quick Facts

1 BTU

252.165392 cal

1 cal

0.003965651243 BTU

10 BTU

2,521.65392 cal

100 BTU

25,216.5392 cal

How to Convert BTUs to Calories

Converting btus to calories is one of the most common energy conversions. Whether you're working with international measurements, academic research, or everyday calculations, understanding the relationship between btus and calories is essential. One btu (BTU) equals exactly 252.165392 calories (cal), and conversely, one calorie equals 0.003965651243 btus.

This conversion is frequently used in nutrition and dietary calorie tracking and electricity consumption and billing. For quick reference: 10 btus = 2,521.65392 calories, and 100 btus = 25,216.5392 calories. Our converter above handles any value instantly, including decimal and negative numbers.

The btu and calorie are both units of energy. The conversion factor between them is constant, making it straightforward to convert in either direction. Other common applications include fitness and exercise energy expenditure and industrial energy efficiency analysis.

Use the conversion table below for pre-calculated values, or enter any custom number in the converter above. All calculations are performed with full floating-point precision to ensure accuracy for both everyday use and professional applications. Bookmark this page for quick access whenever you need to convert btus to calories.

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