BTU per Hour to Calories (BTU/h → cal)
Formula
1 BTU/h = 0.0700456500956023 calConversion Table
| BTU/h | cal |
|---|---|
| 0 | 0 |
| 1.0000 | 0.070046 |
| 2.0000 | 0.14009 |
| 3.0000 | 0.21014 |
| 4.0000 | 0.28018 |
| 5.0000 | 0.35023 |
| 6.0000 | 0.42027 |
| 7.0000 | 0.49032 |
| 8.0000 | 0.56037 |
| 9.0000 | 0.63041 |
| 10.000 | 0.70046 |
| 11.000 | 0.77050 |
| 12.000 | 0.84055 |
| 13.000 | 0.91059 |
| 14.000 | 0.98064 |
| 15.000 | 1.0507 |
| 16.000 | 1.1207 |
| 17.000 | 1.1908 |
| 18.000 | 1.2608 |
| 19.000 | 1.3309 |
| BTU/h | cal |
|---|---|
| 20.000 | 1.4009 |
| 21.000 | 1.4710 |
| 22.000 | 1.5410 |
| 23.000 | 1.6110 |
| 24.000 | 1.6811 |
| 25.000 | 1.7511 |
| 26.000 | 1.8212 |
| 27.000 | 1.8912 |
| 28.000 | 1.9613 |
| 29.000 | 2.0313 |
| 30.000 | 2.1014 |
| 31.000 | 2.1714 |
| 32.000 | 2.2415 |
| 33.000 | 2.3115 |
| 34.000 | 2.3816 |
| 35.000 | 2.4516 |
| 36.000 | 2.5216 |
| 37.000 | 2.5917 |
| 38.000 | 2.6617 |
| 39.000 | 2.7318 |
| BTU/h | cal |
|---|---|
| 40.000 | 2.8018 |
| 41.000 | 2.8719 |
| 42.000 | 2.9419 |
| 43.000 | 3.0120 |
| 44.000 | 3.0820 |
| 45.000 | 3.1521 |
| 46.000 | 3.2221 |
| 47.000 | 3.2921 |
| 48.000 | 3.3622 |
| 49.000 | 3.4322 |
| 50.000 | 3.5023 |
| 51.000 | 3.5723 |
| 52.000 | 3.6424 |
| 53.000 | 3.7124 |
| 54.000 | 3.7825 |
| 55.000 | 3.8525 |
| 56.000 | 3.9226 |
| 57.000 | 3.9926 |
| 58.000 | 4.0626 |
| 59.000 | 4.1327 |
| BTU/h | cal |
|---|---|
| 60.000 | 4.2027 |
| 61.000 | 4.2728 |
| 62.000 | 4.3428 |
| 63.000 | 4.4129 |
| 64.000 | 4.4829 |
| 65.000 | 4.5530 |
| 66.000 | 4.6230 |
| 67.000 | 4.6931 |
| 68.000 | 4.7631 |
| 69.000 | 4.8331 |
| 70.000 | 4.9032 |
| 71.000 | 4.9732 |
| 72.000 | 5.0433 |
| 73.000 | 5.1133 |
| 74.000 | 5.1834 |
| 75.000 | 5.2534 |
| 76.000 | 5.3235 |
| 77.000 | 5.3935 |
| 78.000 | 5.4636 |
| 79.000 | 5.5336 |
BTU per Hour to Calories Conversion
Converting BTU per Hour (BTU/h) to Calories (cal) is a common energy and power conversion. 1 BTU/h equals 0.070046 cal. For example, 100 BTU/h is equal to 7.004565 cal.
Quick Mental Math: BTU per Hour to Calories
For energy conversions, identify the unit scale difference in the prefix or definition.
Why is converting BTU per Hour to Calories tricky?
Energy unit conversions involve non-linear factors across different measurement systems.
Quick Reference Values
1 BTU/h = 0.070046 cal. 5 BTU/h = 0.350228 cal. 10 BTU/h = 0.700457 cal. 25 BTU/h = 1.751141 cal. 50 BTU/h = 3.502283 cal. 100 BTU/h = 7.004565 cal.
What is BTU per Hour?
BTU per Hour (BTU/h) is a unit of energy and power. BTU per hour (BTU/h) quantifies power as the rate of energy transfer equal to one British Thermal Unit delivered in one hour. It converts to approximately 0.293071 watts. This unit is commonly used to rate heating and cooling system capacities and thermal power consumption [nist-sp-811]. The concept of BTU per hour stemmed from the BTU to express continuous heat flow rates in heating and ventilation during the 19th century. It was formalized to measure energy transfer rates in thermal engineering applications [nist-sp-811]. BTU/h is standard in HVAC industry specifications in the US, Canada, and the UK. It is used to indicate the heating or cooling capacity of furnaces, air conditioners, and boilers where SI units are uncommon or supplemented [nist-sp-811].
What is Calories?
Calories (cal) is a unit of energy and power. The calorie (cal) is defined as exactly 4.184 joules. It quantifies the energy needed to raise the temperature of one gram of water by 1°C under standard conditions. The calorie is widely used in chemistry and nutrition to express energy content [bipm-si-brochure]. The calorie was introduced in the early 19th century by Nicolas Clément and standardized internationally in the 20th century. It was adopted for practical energy measurement in chemistry and food science before the joule became the SI unit [bipm-si-brochure]. Calories remain common in food labeling, nutrition, and chemistry worldwide. The dietary Calorie (kcal) is prevalent in the US, Europe, and many countries while scientific contexts prefer the joule [bipm-si-brochure].
Common Misspellings
People often search for this conversion using these alternate spellings: btu per hr, btu/hour, btu per hours, btu per h, btu per hr, calorie, cal, calory, calo. All of these refer to the BTU per Hour to Calories conversion.