Watt to BTU per Hour (IT) Converter
Power · unit-converter
Convert Watt to BTU per Hour (IT) with a fixed input and output unit, step-by-step formula line, and reference tables. Linear units use SI watt definitions; mechanical hp uses 550 ft·lbf/s; BTU/h uses the IT BTU; dBm/dBW are logarithmic relative to 1 mW and 1 W. The full Power Converter also includes PS/CV, TR, kVA/MVA, and ft·lb/s.
Calculator
From: Watt (w)
To: BTU per Hour (IT) (btu_hr)
About Watt
The watt is the SI unit of power (one joule per second). All linear units in this converter are defined by a fixed watt equivalent.
About BTU per Hour (IT)
BTU per hour expresses thermal power using the IT British thermal unit (≈ 1,055.056 J per BTU), divided by one hour. Common in HVAC equipment ratings.
How to convert watts to btu per hour (it)
1 watt is equal to 3.41214163312794 btu per hour (it) when both are expressed in watt-equivalents:
1 w = (1 W ÷ 0.2930710701722222 W) btu_hr = 3.41214163312794 btu_hr
Each watt is defined as 1 W and each btu per hour (it) as 0.2930710701722222 W in this tool, so one w equals 1 ÷ 0.2930710701722222 btu_hr = 3.41214163312794 btu_hr.
Let d(w) be the numeric value in Watt (w), and d(btu_hr) the value in BTU per Hour (IT) (btu_hr). Then:
d(btu_hr) = d(w) × (1 / 0.2930710701722222)
Equivalently, divide by how many w fit into one btu_hr (watts per btu_hr divided by watts per w):
d(btu_hr) = d(w) ÷ 0.29307107017222
Or: btu per hour (it) = watt ÷ 0.29307107017222
Examples
Example #1: Convert 1 w to btu per hour (it)
1 w = 1 w × (1/0.2930710701722222) btu_hr = 3.4121416331 btu_hr
1 w = 1 w ÷ 0.29307107017222 = 3.4121416331 btu_hr
Intermediate watts: 1 W
Example #2: Convert 10 w to btu per hour (it)
10 w = 10 w × (1/0.2930710701722222) btu_hr = 34.1214163313 btu_hr
10 w = 10 w ÷ 0.29307107017222 = 34.1214163313 btu_hr
Intermediate watts: 10 W
Summary
To convert Watt to BTU per Hour (IT), multiply the value in w by the ratio of watts per w divided by watts per btu_hr. Equivalently: value_btu_hr = value_w × (1 / 0.2930710701722222). Numerically, 1 w equals 3.4121416331279417 btu_hr.
Relationship context
You are converting between SI / decimal power (watts and prefixes) (Watts) and thermal engineering rates (BTU/h, kcal/h) (BTU per Hour (IT)). All linear values are mapped through watts first. The numeric factor is 3.412142e+0.
Conversion tables
| Watt (w) | BTU per Hour (IT) (btu_hr) |
|---|---|
| 0.1 | 0.3412141633 |
| 1 | 3.4121416331 |
| 2 | 6.8242832663 |
| 3 | 10.2364248994 |
| 4 | 13.6485665325 |
| 5 | 17.0607081656 |
| 6 | 20.4728497988 |
| 7 | 23.8849914319 |
| 8 | 27.297133065 |
| 9 | 30.7092746982 |
| Watt (w) | BTU per Hour (IT) (btu_hr) |
|---|---|
| 10 | 34.1214163313 |
| 20 | 68.2428326626 |
| 30 | 102.364248994 |
| 40 | 136.485665325 |
| 50 | 170.607081656 |
| 60 | 204.728497988 |
| 70 | 238.849914319 |
| 80 | 272.97133065 |
| 90 | 307.092746982 |
| 100 | 341.214163313 |