Milliwatts to BTU per hour converter
BTU per hour (BTU/h)
1 milliwatt = 0.003412141633 BTU per hour
How to convert milliwatts to BTU per hour
BTU/h = mW × 0.00341214163313
Multiply the number of milliwatts by 0.00341214163313 to get BTU per hour. Going the other way, divide by 0.00341214163313 (or multiply by 293.071070172).
One milliwatt is exactly defined as 0.00341214163313 BTU per hour (to 12 significant figures), and one BTU per hour is 293.071070172 milliwatts.
Worked examples
- Convert 5 milliwatts: 5 × 0.00341214163313 = 0.01706070817 0.01706070817 BTU per hour.
- Convert 12.5 milliwatts: 12.5 × 0.00341214163313 = 0.04265177041 0.04265177041 BTU per hour.
- Convert 250 milliwatts: 250 × 0.00341214163313 = 0.8530354083 0.8530354083 BTU per hour.
Quick-reference table
| mW | BTU/h |
|---|---|
| 1 | 0.003412141633 |
| 2 | 0.006824283266 |
| 3 | 0.0102364249 |
| 5 | 0.01706070817 |
| 10 | 0.03412141633 |
| 15 | 0.0511821245 |
| 20 | 0.06824283266 |
| 25 | 0.08530354083 |
| 50 | 0.1706070817 |
| 75 | 0.2559106225 |
| 100 | 0.3412141633 |
| 1,000 | 3.412141633 |
| BTU/h | mW |
|---|---|
| 1 | 293.0710702 |
| 2 | 586.1421403 |
| 3 | 879.2132105 |
| 5 | 1,465.355351 |
| 10 | 2,930.710702 |
| 15 | 4,396.066053 |
| 20 | 5,861.421403 |
| 25 | 7,326.776754 |
| 50 | 14,653.55351 |
| 75 | 21,980.33026 |
| 100 | 29,307.10702 |
| 1,000 | 293,071.0702 |
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Frequently asked questions
How many BTU per hour are in 1 milliwatt?
1 milliwatt equals 0.003412141633 BTU per hour.
What is the formula to convert milliwatts to BTU per hour?
Use BTU/h = mW × 0.00341214163313. Multiply the number of milliwatts by 0.00341214163313 to get BTU per hour. Going the other way, divide by 0.00341214163313 (or multiply by 293.071070172).
What is 100 milliwatts in BTU per hour?
100 milliwatts is 0.3412141633 BTU per hour.