Home » Math & Conversions » Unit Conversions » BTU to kWh Converter BTU to kWh Converter Convert energy from British Thermal Units (BTU) to kilowatt-hours (kWh) or calculate the energy cost of an appliance like an air conditioner. Energy Conversion (BTU ↔ kWh) Use this for converting pure energy units. This is **not** for appliance ratings (see next calculator). BTU Kilowatt-Hours (kWh) AC

Heater Energy & Cost Calculator This is the tool you probably want. Use it to find the daily energy use and cost of an appliance based on its **power rating (BTU/hr)**. Appliance Power Rating (BTU/hr) Hours of Use per Day Cost per kWh (from your bill) Estimated Daily Cost $3.52 Based on 23.44 kWh of energy used per day. The Important Difference: BTU vs. BTU/hr The biggest point of confusion in this conversion is the difference between **Energy** and **Power**. BTU (British Thermal Unit) is a unit of **ENERGY**. It is an *amount* of heat, just like a kWh or a calorie. BTU/hr (BTU per hour) is a unit of **POWER**. It is the *rate* at which energy is used, just like a kW or horsepower. Your air conditioner isn't a "10,000 BTU" unit; it's a "10,000 BTU/hr" unit. It *consumes* energy at a *rate* of 10,000 BTU per hour. You pay your utility company for the total **energy (kWh)** you use over the month. Formulas Used 1. Energy Conversion (BTU to kWh) This is a direct conversion between two energy units. 1 BTU = 0.000293071 kWh 1 kWh = 3412.14 BTU Use the first calculator on this page for this simple conversion. 2. Power Conversion (BTU/hr to kW) This is a direct conversion between two power units. This is the first step in our cost calculator. 1 kW = 3412.14 BTU/hr 1 BTU/hr = 0.000293071 kW Example: A 10,000 BTU/hr AC unit has a power of 10,000