Watts ↔ BTU/hr Converter
Convert between watts and BTU per hour instantly
Enter watts value to convert to BTU/hr
Enter BTU/hr value to convert to watts
Conversion Result
1,000 W = 3,412.14 BTU/hr
1 kW • 0.284 tons of cooling • 0.00134 horsepower
📚 Watts ↔ BTU/hr Conversion Details
Watts to BTU/hr Formula
BTU/hr = Watts × 3.412142
To convert watts to BTU per hour, multiply watts by 3.412142.
BTU/hr to Watts Formula
Watts = BTU/hr ÷ 3.412142
To convert BTU per hour to watts, divide BTU/hr by 3.412142.
Bidirectional Conversion
This converter works both ways simultaneously:
- Type in watts → BTU/hr updates automatically
- Type in BTU/hr → watts updates automatically
- No buttons to click - works as you type
Common Uses
- Air conditioner sizing
- Heater power calculation
- Electrical appliance cooling needs
- Energy efficiency calculations
⚡ How This Converter Works
This is a bidirectional converter that works in real-time:
- Watts → BTU/hr: When you type in the watts field, the BTU/hr field automatically updates
- BTU/hr → Watts: When you type in the BTU/hr field, the watts field automatically updates
- No swapping needed: Both conversions happen simultaneously
- Real-time: Updates happen as you type, no button clicks required
// Bidirectional Conversion Logic:
BTU/hr = watts × 3.412142
watts = BTU/hr ÷ 3.412142
// Example 1: Type "1000" in watts
BTU/hr = 1000 × 3.412142 = 3,412.142
// Example 2: Type "5000" in BTU/hr
watts = 5000 ÷ 3.412142 = 1,465.355
BTU/hr = watts × 3.412142
watts = BTU/hr ÷ 3.412142
// Example 1: Type "1000" in watts
BTU/hr = 1000 × 3.412142 = 3,412.142
// Example 2: Type "5000" in BTU/hr
watts = 5000 ÷ 3.412142 = 1,465.355
📊 Conversion Table
| Watts (W) | BTU per Hour | Equivalent To |
|---|---|---|
| 100 W | 341.21 BTU/hr | Small fan or light bulb |
| 500 W | 1,706.07 BTU/hr | Small space heater |
| 1,000 W | 3,412.14 BTU/hr | 1 kW heater |
| 1,500 W | 5,118.21 BTU/hr | Typical hair dryer |
| 2,000 W | 6,824.28 BTU/hr | Small room air conditioner |
| 5,000 W | 17,060.71 BTU/hr | Large space heater |
❓ Frequently Asked Questions
Q: How many BTU/hr are in one watt?
A: One watt equals approximately 3.412142 BTU per hour.
Q: What is the conversion factor?
A: The exact conversion factor is 1 W = 3.412142 BTU/hr.
Q: Why convert watts to BTU/hr?
A: Watts measure electrical power, while BTU/hr measures thermal power. This conversion is essential for sizing air conditioners and heaters.
Q: Is BTU/hr the same as BTU?
A: BTU is a unit of energy, while BTU/hr is a rate of energy transfer (power). This converter uses BTU per hour.