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Kilocalorie per Hour to BTU per Minute Converter

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

Quick Answer

1 Kilocalorie per Hour = 0.066094 BTU/min

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

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: December 2025Reviewed by: Sam Mathew, Software Engineer

Kilocalorie per Hour to BTU per Minute Calculator

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

  1. Enter the value you want to convert in the 'From' field (Kilocalorie per Hour).
  2. The converted value in BTU per Minute 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 Kilocalorie per Hour to BTU per Minute: Step-by-Step Guide

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

Formula:

BTU/min = kcal/h × 0.0660944

Example Calculation:

1 kcal/h = 0.066094 BTU/min

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 Kilocalorie per Hour and a BTU per Minute?

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

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

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

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

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

Common Uses for 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.

When to Use 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.

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.

About BTU per Minute (BTU/min)

How do I convert BTU/min to BTU/h?

Formula: BTU/h = BTU/min × 60

Examples:

  • 100 BTU/min = 6,000 BTU/h
  • 1,000 BTU/min = 60,000 BTU/h
  • 10,000 BTU/min = 600,000 BTU/h

BTU/min to BTU/h converter →

How do I convert BTU/min to watts or kW?

Formula:

  • W = BTU/min × 17.58
  • kW = BTU/min × 0.01758

Examples:

  • 100 BTU/min = 1,758 W = 1.76 kW
  • 1,000 BTU/min = 17,580 W = 17.58 kW
  • 5,000 BTU/min = 87,900 W = 87.9 kW

BTU/min to Watts converter → BTU/min to kW converter →

Why is BTU/min rarely used?

BTU/h preferred: Easier to work with for HVAC sizing (avoid large numbers) kW preferred: International standard, simpler calculations BTU/min awkward: Falls between BTU/h (too slow) and BTU/s (too fast)

Example comparisons:

  • BTU/h: 100,000 BTU/h (easy to read)
  • BTU/min: 1,667 BTU/min (awkward decimal)
  • kW: 29.3 kW (simple)

Most equipment nameplates use BTU/h or kW, not BTU/min.

Conversion Table: Kilocalorie per Hour to BTU per Minute

Kilocalorie per Hour (kcal/h)BTU per Minute (BTU/min)
0.50.033
10.066
1.50.099
20.132
50.331
100.661
251.652
503.305
1006.609
25016.524
50033.047
1,00066.094

People Also Ask

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

To convert Kilocalorie per Hour to BTU per Minute, enter the value in Kilocalorie per Hour 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 Kilocalorie per Hour to BTU per Minute?

The conversion factor depends on the specific relationship between Kilocalorie per Hour and BTU per Minute. 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 BTU per Minute back to Kilocalorie per Hour?

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

Learn more →

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

Kilocalorie per Hour and BTU per Minute 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: December 3, 2025