Watts to btu per hours calculator
Convert watts (W) to BTU per hour (BTU/h) easily. 1 W = 3.412141633 BTU/h. Perfect for HVAC, heating, and cooling capacity conversions.

w to btu/h conversion chart
In order to determine watts to BTU/hr, you can multiply the watts by 3.412141633. To find the reverse, take BTU/h divided by 3.412141633. This is normally applied in HVAC or heat calculations.
Formula & Table Summary:
W → BTU/h : BTU/h = W × 3.412141633
BTU/h → W : W = BTU/h × 0.29307107
hvac w to btu/h formula
Watts to BTU/h Calculator Watts (W) and BTU/h ( British Thermal Units per hour) are both popular measurements of power and heat transfer, which is why the Calculator changes between those units. The precise relationship is 1W = 3.412141633 BTU/h and 1 BTU/h = 0.29307107 W. This is an essential conversion to HVAC systems, heaters, air conditioners, and any comparisons involving energy ratings between the SI (International System of Units), and the U.S. customary system. As an engineer, technician or homeowner, this tool guarantees me fast yet accurate conversions that need no manual calculation.
watts to btu per hour calculator
Unit In | Value In | Unit Out | Value Out |
---|---|---|---|
W | 1 | BTU/h | 3.4121 |
W | 5 | BTU/h | 17.0607 |
W | 10 | BTU/h | 34.1214 |
W | 50 | BTU/h | 170.6071 |
W | 100 | BTU/h | 341.2142 |
BTU/h | 1 | W | 0.2931 |
BTU/h | 10 | W | 2.9307 |
BTU/h | 100 | W | 29.3071 |
Frequently Asked Questions - Watts to btu per hours calculator:
What is the watts to BTU/h formula?
BTU/h = W × 3.412141633.
How to convert BTU/h to watts?
W = BTU/h × 0.29307107.
Why is 1 W equal to 3.412 BTU/h?
It comes from converting joules per second to BTUs per hour.
Is this used for HVAC?
Yes, HVAC systems often rate capacity in BTU/h which can be converted to watts.
Does this apply to heating and cooling?
Yes, the formula is the same for both heating and cooling power.
What is a BTU?
A BTU is the heat required to raise 1 pound of water by 1°F.
Why use watts instead of BTU/h?
Watts are the global SI unit of power, easier for scientific calculations.
How do I convert watts to kBTU/h?
kBTU/h = (W × 3.412141633) ÷ 1000.
Is 1000 W equal to 3412 BTU/h?
Yes, exactly 1000 watts is 3412.141633 BTU/h.
Can I round the factor?
Yes, 3.412 is often used for quick estimates.
Related Posts

max voltage calculator
Quickly find the maximum allowable voltage for components or systems using RMS/peak conversions, derating, and breakdown limits. Useful for design and safety checks.

VA to kVA Calculator
Use our free VA to kVA calculator to quickly convert volt-amperes (VA) to kilovolt-amperes (kVA) with formula, examples, and conversion table.

No load current calculator
Calculate no-load current for motors and transformers from rated power, voltage, power factor, and efficiency, or estimate from measured input at no load.

inverter voltage calculator
Easily calculate the inverter output voltage from the DC input and efficiency. Perfect for solar, battery, and off-grid power systems.

Watts to Joules Calculator
Convert watts to joules easily using this online calculator. Input time in seconds and power in watts to calculate energy in joules instantly. Works for physics & electronics.

kW to Amps Calculator
Convert kilowatts (kW) to amps (A) with this easy calculator. Select single-phase or three-phase, enter voltage and power factor to get the current in amperes.