BTUs to Kilowatt Hours Calculator
Enter btus to find kilowatt hours. kWh = BTU × 0.000293071070172.
How the result changes
Only btus changes; all other inputs stay at your current values. The line illustrates the formula across the shown range. This is not a forecast of real-world outcomes.
About this calculation
Convert btus (BTU) to kilowatt hours (kWh) while preserving the underlying energy quantity. The calculator updates when the input changes and shows the conversion rule and a worked example.
Formula
kWh = BTU × 0.000293071070172
Worked example
With BTUs: 1 BTU, kilowatt hours is 0.000293 kWh.
How to convert btus to kilowatt hours
Enter a value in btus. Multiply it by the factor in the displayed formula to express the same quantity in kilowatt hours. To reverse the relationship, divide by the same nonzero factor.
kWh = BTU × 0.000293071070172. As a reference point, 10 BTU equals 0.002931 kWh with this conversion. This is an example, not a recommended level or target.
What the unit relationship means
BTUs and kilowatt hours express quantities of energy. Energy can describe electrical consumption, transferred heat, or mechanical work; the unit conversion changes the number but not the kind of event that supplied it. Keep a unit of power, such as a watt, separate from an energy unit, such as a watt-hour. Power needs a duration before it becomes an energy amount, so a BTU-to-kWh conversion alone cannot tell you how long a device ran.
Check the direction of the result
As a scale check, one BTU corresponds to 0.000293 kWh. Doubling the input from 10 BTU to 20 BTU changes the calculated output from 0.002931 kWh to 0.005861 kWh. Ordinary factor conversions are proportional: zero maps to zero and doubling the input doubles the result. If a copied value does not follow this pattern, check the source unit, decimal point, and formula direction.
When this conversion is useful
Use btus and kilowatt hours to compare heating, cooling, or electricity-energy specifications that use different energy units.
What to check
A BTU and a kilowatt-hour measure energy. BTU per hour and kilowatts measure power, which is energy per unit time. In this direction the entered btus is reported as kilowatt hours; check both unit symbols when copying a figure from another source, because the reverse direction answers a different question.
Precision and reporting
Energy labels, meters, and specifications may round their values differently. Retain the unit and enough digits to avoid compounding rounding error in later calculations, but do not present a rough source estimate as an exact measurement. If comparing bills or food labels, also check the reporting period or serving size. For a separate reporting example, 7.3 BTU produces 0.002139 kWh. If 7.3 BTU was an approximate reading, the converted digits should not be treated as a more accurate measurement.
Common questions
What is the reverse of btus to kilowatt hours?
To return from kWh to BTU, divide by the nonzero factor shown in this calculator's formula.
Inputs
- BTUs (BTU)