Btu per hour square foot °F to Kilocalories per hour square meter °C Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert Btu per hour square foot °F to Kilocalories per hour square meter °C, multiply by 4.885695. For example, 10 Btu/(h·ft²·°F) is 48.85695 kcal/(h·m²·°C). One btu per hour square foot °f equals 4.885695 kcal/(h·m²·°C).

Use the Btu per hour square foot °F to Kilocalories per hour square meter °C Converter

Btu per hour square foot °F to Kilocalories per hour square meter °C formula and what each symbol means

kcal/(h·m²·°C) = Btu/(h·ft²·°F) × 4.885695

Symbols used in the formula
SymbolMeaning
Btu/(h·ft²·°F)Btu per hour square foot °F
kcal/(h·m²·°C)Kilocalorie per hour square meter °C

Btu per hour square foot °F to Kilocalories per hour square meter °C examples

1 Btu/(h·ft²·°F)

1 Btu/(h·ft²·°F) × 4.885695 = 4.885695 kcal/(h·m²·°C).

10 Btu/(h·ft²·°F)

10 Btu/(h·ft²·°F) × 4.885695 = 48.85695 kcal/(h·m²·°C).

100 Btu/(h·ft²·°F)

100 Btu/(h·ft²·°F) × 4.885695 = 488.5695 kcal/(h·m²·°C).

Btu per hour square foot °F compared with Kilocalories per hour square meter °C

One Btu/(h·ft²·°F) is 4.886 times as large as one kcal/(h·m²·°C), so your number gets bigger when you convert Btu per hour square foot °F to Kilocalories per hour square meter °C and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.

About Btu per hour square foot °F and Kilocalories per hour square meter °C

Btu per hour square foot °F (Btu/(h·ft²·°F)): A US customary unit, about 5.6783 W/(m²·K). Kilocalorie per hour square meter °C (kcal/(h·m²·°C)): A metric engineering unit, about 1.1622 W/(m²·K).

How to calculate Btu per hour square foot °F to Kilocalories per hour square meter °C step by step

  1. Enter the value in Btu/(h·ft²·°F) (the starting unit).
  2. Multiply by 4.885695, because 1 Btu/(h·ft²·°F) = 4.885695 kcal/(h·m²·°C).
  3. The product is the value in kcal/(h·m²·°C). To go back, divide by 4.885695 or multiply by 0.2046792.

Popular heat transfer coefficient conversions

How to read your Btu per hour square foot °F to Kilocalories per hour square meter °C result

Quick estimate: multiply by about 4.9 to get Kilocalories per hour square meter °C from Btu per hour square foot °F; this is within 0.3% of the exact factor. The SI unit is watt per square metre kelvin.

BTU PER HOUR SQUARE FOOT °FKILOCALORIES PER HOUR SQUARE METER °C
14.885695
29.77139
524.42848
1048.85695
2097.7139
50244.2848
100488.5695
1,0004,885.695

Kilocalories per hour square meter °C to Btu per hour square foot °F: quick table

KILOCALORIES PER HOUR SQUARE METER °CBTU PER HOUR SQUARE FOOT °F
10.2046792
51.023396
102.046792
255.116979
5010.23396
10020.46792
25051.16979
500102.3396

Common mistakes when calculating Btu per hour square foot °F to Kilocalories per hour square meter °C

  • Confusing the coefficient (W/(m²·K)) with thermal conductivity (W/(m·K)).
  • Dividing when you should multiply: from Btu/(h·ft²·°F) to kcal/(h·m²·°C) multiply by 4.885695; from kcal/(h·m²·°C) to Btu/(h·ft²·°F) divide by 4.885695.

Btu per hour square foot °F to Kilocalories per hour square meter °C FAQ

How many kcal/(h·m²·°C) are in 1 Btu/(h·ft²·°F)?

1 Btu/(h·ft²·°F) equals 4.885695 kcal/(h·m²·°C).

How many Btu/(h·ft²·°F) are in 1 kcal/(h·m²·°C)?

1 kcal/(h·m²·°C) equals 0.2046792 Btu/(h·ft²·°F).

Is 1 Btu/(h·ft²·°F) = 4.885695 kcal/(h·m²·°C) an exact conversion?

The factor is shown rounded to 7 significant figures (4.885695). The calculator above uses more digits.

What is a kilocalorie per hour square meter °C (kcal/(h·m²·°C))?

A metric engineering unit, about 1.1622 W/(m²·K).

How can I estimate Btu per hour square foot °F to Kilocalories per hour square meter °C in my head?

Quick estimate: multiply by about 4.9 to get Kilocalories per hour square meter °C from Btu per hour square foot °F; this is within 0.3% of the exact factor.

What is 300 Btu/(h·ft²·°F) in Kilocalories per hour square meter °C?

300 Btu/(h·ft²·°F) = 1,465.709 kcal/(h·m²·°C) (since 300 × 4.885695).

What is 12 Btu/(h·ft²·°F) in Kilocalories per hour square meter °C?

12 Btu/(h·ft²·°F) = 58.62834 kcal/(h·m²·°C) (since 12 × 4.885695).

What is 60 Btu/(h·ft²·°F) in Kilocalories per hour square meter °C?

60 Btu/(h·ft²·°F) = 293.1417 kcal/(h·m²·°C) (since 60 × 4.885695).

How many decimals should I keep when converting Btu/(h·ft²·°F) to kcal/(h·m²·°C)?

Match the precision of your original measurement. For example, 48.85695 kcal/(h·m²·°C) rounds to 48.9 kcal/(h·m²·°C) at 3 significant figures; keep more digits only for engineering or scientific work.

Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)