convertimate Heat pump & AC efficiency

Energy efficiency ratio to kilowatts per ton

Type a value in EER to get it in kW/ton instantly.

1kW/ton

That's 1.1× as efficient as an air-source heat pump, while a modern split air conditioner is 1.08× more efficient. Every kWh of electricity moves 3.517 kWh of heat.

What it means

How efficient is that?

These are steady-state ratings. Seasonal figures such as SEER and SCOP average over a whole year of weather and cannot be converted exactly from a single rating.

The math

How to convert EER to kW/ton

EER = COP × 3.412 (BTU per watt-hour), and kW/ton = 3.517 ÷ COP.

Example: 12 EER = 1 kW/ton.

Every unit

Your efficiency in every unit

Tables

EER to kW/ton conversion table

EER to kW/ton conversion table
EERkW/ton
7 EER1.71429 kW/ton
8 EER1.5 kW/ton
9 EER1.33333 kW/ton
10 EER1.2 kW/ton
11 EER1.09091 kW/ton
12 EER1 kW/ton
13 EER0.923077 kW/ton
14 EER0.857143 kW/ton
15 EER0.8 kW/ton
18 EER0.666667 kW/ton
20 EER0.6 kW/ton
kW/ton to EER conversion table
kW/ton to EER conversion table
kW/tonEER
7 kW/ton1.71429 EER
8 kW/ton1.5 EER
9 kW/ton1.33333 EER
10 kW/ton1.2 EER
11 kW/ton1.09091 EER
12 kW/ton1 EER
13 kW/ton0.923077 EER
14 kW/ton0.857143 EER
15 kW/ton0.8 EER
18 kW/ton0.666667 EER
20 kW/ton0.6 EER

Quick answers

Quick answers

How many kW/ton is 1 EER?
1 EER is 12 kW/ton.
How many kW/ton is 10 EER?
10 EER is 1.2 kW/ton.
How many kW/ton is 12 EER?
12 EER is 1 kW/ton.

The units

About these units

Energy efficiency ratio (EER)

The US rating: BTU per hour of cooling per watt.

Kilowatts per ton (kW/ton)

Chiller plants: electricity per ton of cooling. Lower is better.

Learn more about efficiency units

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