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BTU per Minute to Kilocalorie per Hour Converter

Convert BTU/min to kcal/h with our free online power converter.

Quick Answer

1 BTU per Minute = 15.129864 kcal/h

Formula: BTU per Minute × conversion factor = Kilocalorie per Hour

Use the calculator below for instant, accurate conversions.

Our Accuracy Guarantee

All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: February 2026Reviewed by: Sam Mathew, Software Engineer

BTU per Minute to Kilocalorie per Hour Calculator

How to Use the BTU per Minute to Kilocalorie per Hour Calculator:

  1. Enter the value you want to convert in the 'From' field (BTU per Minute).
  2. The converted value in Kilocalorie per Hour will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Power category.
  4. Click the swap button (⇌) to reverse the conversion direction.
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How to Convert BTU per Minute to Kilocalorie per Hour: Step-by-Step Guide

Converting BTU per Minute to Kilocalorie per Hour involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

kcal/h = BTU/min × 15.1299

Example Calculation:

1 BTU/min = 15.129864 kcal/h

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

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What is a BTU per Minute and a Kilocalorie per Hour?

1 BTU/min = 17.58 W = 0.01758 kW = 60 BTU/h = 0.0236 hp = 1.055 kJ/min

1 kcal/h = 1.163 W = 0.001163 kW = 0.00156 hp = 3.968 BTU/h = 4,184 J/h

Note: Uses food Calorie (Cal) = kilocalorie (kcal) = 1,000 small calories

Note: The BTU per Minute is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Kilocalorie per Hour belongs to the imperial/US customary system.

Common Uses and Applications: BTU/min vs kcal/h

Explore the typical applications for both BTU per Minute (imperial/US) and Kilocalorie per Hour (imperial/US) to understand their common contexts.

Common Uses for BTU/min

Industrial Burners: Gas burners, process heaters (sometimes rated in BTU/min). Engineering: Conversion reference between BTU/h and BTU/s. Boilers: Small commercial boilers (though BTU/h more common). Rarely Used: Most applications use BTU/h or kW instead.

When to Use kcal/h

Metabolism: Basal metabolic rate (BMR), daily energy expenditure. Nutrition: Energy requirements, dietary planning. HVAC: Human body heat load in building calculations (Europe). Sports Science: Exercise energy expenditure, training zones.

Additional Unit Information

About Kilocalorie per Hour (kcal/h)

How do I convert kcal/h to watts?

Formula: W = kcal/h × 1.163

Examples:

  • 60 kcal/h = 70 W (sleeping)
  • 100 kcal/h = 116 W (sitting)
  • 500 kcal/h = 582 W (running)
  • 1,000 kcal/h = 1,163 W = 1.16 kW

kcal/h to Watts converter →

How do I calculate my basal metabolic rate (BMR)?

Mifflin-St Jeor Equation (most accurate):

Men: BMR (kcal/day) = 10 × weight(kg) + 6.25 × height(cm) - 5 × age(years) + 5 Women: BMR (kcal/day) = 10 × weight(kg) + 6.25 × height(cm) - 5 × age(years) - 161

Convert to kcal/h: Divide by 24

Example - 30-year-old male, 80kg, 180cm:

  • BMR = (10 × 80) + (6.25 × 180) - (5 × 30) + 5 = 1,730 kcal/day
  • Hourly rate: 1,730 ÷ 24 = 72 kcal/h = 84 W

Example - 30-year-old female, 65kg, 165cm:

  • BMR = (10 × 65) + (6.25 × 165) - (5 × 30) - 161 = 1,370 kcal/day
  • Hourly rate: 1,370 ÷ 24 = 57 kcal/h = 66 W

What is the difference between kcal/h and cal/s?

kcal/h = Kilocalories per hour (large Calorie per hour) cal/s = Calories per second (small calorie per second)

Conversion: 1 cal/s = 3.6 kcal/h

Usage:

  • kcal/h: Metabolism, nutrition (aligns with daily calorie counts)
  • cal/s: Physics, thermodynamics

Example: 100W power

  • As watts: 100 W
  • As kcal/h: 86 kcal/h
  • As cal/s: 24 cal/s

How many kcal/h do I burn exercising?

MET (Metabolic Equivalent) method:

Formula: kcal/h = MET × weight(kg) × 1.05

Common MET values:

  • Sleeping: 0.9 METs
  • Sitting: 1.0 METs
  • Walking (3 mph): 3.5 METs
  • Jogging (5 mph): 8.0 METs
  • Running (7 mph): 11.5 METs
  • Cycling (moderate): 8.0 METs
  • Swimming (moderate): 8.0 METs

Example - 70kg person running at 7 mph:

  • kcal/h = 11.5 × 70 × 1.05 = 845 kcal/h = 982 W

Example - 70kg person walking at 3 mph:

  • kcal/h = 3.5 × 70 × 1.05 = 257 kcal/h = 299 W

Why does HVAC use kcal/h in some countries?

Historical: European HVAC tradition used kcal/h before SI adoption Body heat: Natural unit for human heat output (matches food calories) Transition: Many European countries now use watts Mixed practice: Some European standards still reference kcal/h

Conversion for HVAC:

  • 1 person (seated): 100 kcal/h = 116 W
  • Conference room (20 people): 2,000 kcal/h = 2,320 W = 2.32 kW
  • Gym (50 people, active): 20,000 kcal/h = 23,200 W = 23.2 kW

Modern practice: Most HVAC calculations now in watts or BTU/h.

Conversion Table: BTU per Minute to Kilocalorie per Hour

BTU per Minute (BTU/min)Kilocalorie per Hour (kcal/h)
0.57.565
115.13
1.522.695
230.26
575.649
10151.299
25378.247
50756.493
1001,512.986
2503,782.466
5007,564.932
1,00015,129.864

People Also Ask

How do I convert BTU per Minute to Kilocalorie per Hour?

To convert BTU per Minute to Kilocalorie per Hour, enter the value in BTU per Minute in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our power converter page to convert between other units in this category.

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What is the conversion factor from BTU per Minute to Kilocalorie per Hour?

The conversion factor depends on the specific relationship between BTU per Minute and Kilocalorie per Hour. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Kilocalorie per Hour back to BTU per Minute?

Yes! You can easily convert Kilocalorie per Hour back to BTU per Minute by using the swap button (⇌) in the calculator above, or by visiting our Kilocalorie per Hour to BTU per Minute converter page. You can also explore other power conversions on our category page.

Learn more →

What are common uses for BTU per Minute and Kilocalorie per Hour?

BTU per Minute and Kilocalorie per Hour are both standard units used in power measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our power converter for more conversion options.

For more power conversion questions, visit our FAQ page or explore our conversion guides.

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Verified Against Authority Standards

All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.

NIST Reference on Constants, Units and Uncertainty

National Institute of Standards and Technology — Fundamental physical constants and unit conversions

BIPM SI Units

Bureau International des Poids et Mesures — International System of Units (SI) definitions and standards

ISO 80000

International Organization for Standardization — Quantities and units international standards series

Last verified: February 19, 2026