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Common Benchmarks
E-bike motor
500 W
Car engine
100 hp
Microwave
1000 W
Laptop charger
65 W
Refrigerator average
150 W
Electric kettle
1500 W
Formula
BTU/h = W × 3.4121416351
Example
Example: convert 90 watts to BTU per hour.
90 W = 307.09274716 BTU/h
Conversion table
| watts (W) | BTU per hour (BTU/h) |
|---|---|
| 1 W | 3.41214164 BTU/h |
| 2 W | 6.82428327 BTU/h |
| 5 W | 17.06070818 BTU/h |
| 10 W | 34.12141635 BTU/h |
| 20 W | 68.2428327 BTU/h |
| 50 W | 170.60708176 BTU/h |
| 100 W | 341.21416351 BTU/h |
Explanation
These are both units.
How to convert watts to BTU per hour
- Start with the value in watts (W).
- Multiply it by 3.4121416351.
- The result is the measurement in BTU per hour (BTU/h).
Example: 90 W → 307.09274716 BTU/h
Frequently Asked Questions
How much is 90 watts in BTU per hour?
90 watts is about 307.093 BTU per hour.
How many BTU per hour is 1 watt?
1 watt is about 3.4121 BTU per hour.
How many watts is 1 BTU per hour?
1 BTU per hour is about 0.293071 watts.
What is the difference between watts and BTU per hour?
Both measure power, but they are commonly used in different contexts. The watt (W) is the SI unit and is widely used in electrical/device specs, while horsepower (hp) is a traditional unit often used to describe engines and machinery.
Where are watts and BTU per hour used?
Watts are common in electrical power/consumption (devices, appliances, lighting). Horsepower is commonly used for mechanical power (engines, pumps, compressors, machinery).
Why does 1 watt equal 3.4121 BTU per hour?
Because power units are defined with a fixed relationship, which determines the conversion factor.