Joules to BTU per Hour (J → BTU/h)
Formula
1 J = 3.4121424501230075 BTU/hConversion Table
| J | BTU/h |
|---|---|
| 0 | 0 |
| 1.0000 | 3.4121 |
| 2.0000 | 6.8243 |
| 3.0000 | 10.236 |
| 4.0000 | 13.649 |
| 5.0000 | 17.061 |
| 6.0000 | 20.473 |
| 7.0000 | 23.885 |
| 8.0000 | 27.297 |
| 9.0000 | 30.709 |
| 10.000 | 34.121 |
| 11.000 | 37.534 |
| 12.000 | 40.946 |
| 13.000 | 44.358 |
| 14.000 | 47.770 |
| 15.000 | 51.182 |
| 16.000 | 54.594 |
| 17.000 | 58.006 |
| 18.000 | 61.419 |
| 19.000 | 64.831 |
| J | BTU/h |
|---|---|
| 20.000 | 68.243 |
| 21.000 | 71.655 |
| 22.000 | 75.067 |
| 23.000 | 78.479 |
| 24.000 | 81.891 |
| 25.000 | 85.304 |
| 26.000 | 88.716 |
| 27.000 | 92.128 |
| 28.000 | 95.540 |
| 29.000 | 98.952 |
| 30.000 | 102.36 |
| 31.000 | 105.78 |
| 32.000 | 109.19 |
| 33.000 | 112.60 |
| 34.000 | 116.01 |
| 35.000 | 119.42 |
| 36.000 | 122.84 |
| 37.000 | 126.25 |
| 38.000 | 129.66 |
| 39.000 | 133.07 |
| J | BTU/h |
|---|---|
| 40.000 | 136.49 |
| 41.000 | 139.90 |
| 42.000 | 143.31 |
| 43.000 | 146.72 |
| 44.000 | 150.13 |
| 45.000 | 153.55 |
| 46.000 | 156.96 |
| 47.000 | 160.37 |
| 48.000 | 163.78 |
| 49.000 | 167.19 |
| 50.000 | 170.61 |
| 51.000 | 174.02 |
| 52.000 | 177.43 |
| 53.000 | 180.84 |
| 54.000 | 184.26 |
| 55.000 | 187.67 |
| 56.000 | 191.08 |
| 57.000 | 194.49 |
| 58.000 | 197.90 |
| 59.000 | 201.32 |
| J | BTU/h |
|---|---|
| 60.000 | 204.73 |
| 61.000 | 208.14 |
| 62.000 | 211.55 |
| 63.000 | 214.96 |
| 64.000 | 218.38 |
| 65.000 | 221.79 |
| 66.000 | 225.20 |
| 67.000 | 228.61 |
| 68.000 | 232.03 |
| 69.000 | 235.44 |
| 70.000 | 238.85 |
| 71.000 | 242.26 |
| 72.000 | 245.67 |
| 73.000 | 249.09 |
| 74.000 | 252.50 |
| 75.000 | 255.91 |
| 76.000 | 259.32 |
| 77.000 | 262.73 |
| 78.000 | 266.15 |
| 79.000 | 269.56 |
Joules to BTU per Hour Conversion
Converting Joules (J) to BTU per Hour (BTU/h) is a common energy and power conversion. 1 J equals 3.412142 BTU/h. For example, 100 J is equal to 341.214245 BTU/h.
Quick Mental Math: Joules to BTU per Hour
If 20 joules is spread over 1 hour, it is about 0.01896 btu per hour.
Why is converting Joules to BTU per Hour tricky?
joules to btu per hour mixes energy with power, so the missing time step is the trap: the same energy gives different power over 1 second and 1 hour.
Quick Reference Values
1 J = 3.412142 BTU/h. 5 J = 17.060712 BTU/h. 10 J = 34.121425 BTU/h. 25 J = 85.303561 BTU/h. 50 J = 170.607123 BTU/h. 100 J = 341.214245 BTU/h.
What is Joules?
Joules (J) is a unit of energy and power. The joule is the SI unit of energy defined as the work done when a force of one newton moves an object one meter in the direction of the force. It equals one kilogram meter squared per second squared (kg·m²/s²). This definition aligns with the International System of Units as standardized by the BIPM [bipm-si-brochure]. The joule is named after James Prescott Joule, a 19th-century physicist who studied energy conservation. It was officially adopted as a unit of energy by the CGPM in 1948 to unify energy measurement standards internationally [cgpm-resolutions]. Joules are used worldwide in physics, engineering, and electrical industries to quantify energy, work, and heat. Countries using the SI system, including those in Europe, Asia, and the Americas, rely on joules for scientific and industrial applications [nist-si-guide].
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].
Common Misspellings
People often search for this conversion using these alternate spellings: joule, joul, jouls, juls, btu per hr, btu/hour, btu per hours, btu per h, btu per hr. All of these refer to the Joules to BTU per Hour conversion.