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Kilocalorie per Hour (kcal/h) - Unit Information & Conversion

Symbol:kcal/h
Plural:kcal/h
Category:Power

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What is a Kilocalorie per Hour?

Kilocalorie per hour (kcal/h) measures metabolic rate and heat output. 1 kcal/h = 1.163 watts. Used in nutrition, human metabolism, HVAC. Basal metabolic rate: 60-80 kcal/h. 1 food Calorie per hour.

History of the Kilocalorie per Hour

Used in nutrition science and metabolism research since early 20th century. Based on food Calorie (kilocalorie) = 1,000 small calories = 4,184 J. Still common in metabolic studies, European HVAC.

Quick Answer

What is kcal/h? Kilocalorie per hour (kcal/h) measures power in nutritional calories. 1 kcal/h = 1.163 watts. Used for human metabolism, body heat. Basal metabolic rate: 60-80 kcal/h (70-93 W). 1 kcal/h = 1 food Calorie per hour. Use our power converter for conversions.

Definition

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

Common Uses

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.

Real-World Examples

Human Metabolic Rates

  • Basal metabolic rate (BMR): 60-80 kcal/h (70-93 W)
    • Adult male: 70-80 kcal/h
    • Adult female: 60-70 kcal/h
  • Sleeping: 50-60 kcal/h (58-70 W)
  • Sitting quietly: 70-90 kcal/h (81-105 W)
  • Office work (sitting): 80-100 kcal/h (93-116 W)
  • Standing: 100-120 kcal/h (116-140 W)

Physical Activities

  • Walking (slow, 2 mph): 150-200 kcal/h (174-232 W)
  • Walking (brisk, 3.5 mph): 250-350 kcal/h (290-407 W)
  • Jogging (5 mph): 450-550 kcal/h (523-640 W)
  • Running (7 mph): 700-900 kcal/h (814-1,046 W)
  • Cycling (moderate): 400-600 kcal/h (465-698 W)
  • Swimming: 500-800 kcal/h (581-930 W)

Daily Total Energy Expenditure

  • Sedentary adult: 1,800-2,200 kcal/day = 75-92 kcal/h average
  • Moderately active: 2,200-2,800 kcal/day = 92-117 kcal/h average
  • Very active: 2,800-3,500 kcal/day = 117-146 kcal/h average
  • Athlete: 3,500-5,000+ kcal/day = 146-208+ kcal/h average

HVAC Load Calculations

  • Seated adult (office): 100 kcal/h = 116 W heat output
  • Light work: 150 kcal/h = 174 W
  • Moderate work: 250 kcal/h = 290 W
  • Heavy work: 400 kcal/h = 465 W

Kilocalorie per Hour Conversion Formulas

To Watt:

1 kcal/h = 1.162222 W
Example: 5 kcal/h = 5.811111 watts

To Milliwatt:

1 kcal/h = 1162.222222 mW
Example: 5 kcal/h = 5811.111111 milliwatts

To Kilowatt:

1 kcal/h = 0.001162 kW
Example: 5 kcal/h = 0.005811 kilowatts

To Megawatt:

1 kcal/h = 0.000001 MW
Example: 5 kcal/h = 0.000006 megawatts

To Gigawatt:

1 kcal/h = 1.1622e-9 GW
Example: 5 kcal/h = 5.8111e-9 gigawatts

To Horsepower:

1 kcal/h = 0.001559 hp
Example: 5 kcal/h = 0.007793 horsepower

To Metric Horsepower:

1 kcal/h = 0.00158 PS
Example: 5 kcal/h = 0.007901 PS

To Electric Horsepower:

1 kcal/h = 0.001558 hp(E)
Example: 5 kcal/h = 0.00779 hp(E)

To BTU per Hour:

1 kcal/h = 3.965667 BTU/h
Example: 5 kcal/h = 19.828334 BTU/h

To BTU per Minute:

1 kcal/h = 0.066094 BTU/min
Example: 5 kcal/h = 0.330472 BTU/min

To BTU per Second:

1 kcal/h = 0.001102 BTU/s
Example: 5 kcal/h = 0.005508 BTU/s

To Foot-pound per Second:

1 kcal/h = 0.857211 ft⋅lb/s
Example: 5 kcal/h = 4.286056 ft⋅lb/s

To Foot-pound per Minute:

1 kcal/h = 51.432667 ft⋅lb/min
Example: 5 kcal/h = 257.163336 ft⋅lb/min

To Calorie per Second:

1 kcal/h = 0.277778 cal/s
Example: 5 kcal/h = 1.388889 cal/s

To Ton of Refrigeration:

1 kcal/h = 0.00033 TR
Example: 5 kcal/h = 0.001652 TR

To Erg per Second:

1 kcal/h = 11622222.222222 erg/s
Example: 5 kcal/h = 58111111.11111 erg/s

To Joule per Second:

1 kcal/h = 1.162222 J/s
Example: 5 kcal/h = 5.811111 J/s

Frequently Asked Questions

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 →

Convert Kilocalorie per Hour

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Kilocalorie per Hour Quick Info

kcal/h
Symbol:kcal/h
Category:Power
System:Various
Convert Kilocalorie per Hour

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