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Cooling Efficiency and Matched Rating Record

Calculate EER, COP and kW per ton from matched cooling output and input, or retain separately documented seasonal and full-load ratings.

Use this result well

Inputs that matter
Cooling output at stated conditions (Btu/h), Total electrical input at stated conditions (W), Sources and assumptions, Rating generation, and 2 more
Output to expect
Cooling output and input efficiency, Matched seasonal and full-load rating record
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Cooling output and input efficiency

Calculate an energy-efficiency ratio from cooling output and total electrical input measured or published at the same operating condition. COP is a unit conversion of that ratio. This does not derive a seasonal rating or produce an AHRI-certified EER2.

EER = cooling Btu/h ÷ input watts; COP = EER ÷ 3.412141633; kW per refrigeration ton = 12 ÷ EER.

Matched seasonal and full-load rating record

Record a seasonal rating and full-load rating from the same matched system certificate and rating generation. Both values must be supplied. This retains the source pair without inventing a conversion between them or predicting power at another temperature.

Seasonal and full-load ratings are separate entered certificate values; no SEER-to-EER conversion is applied.

Updated: September 2026

Example Scenarios

The built-in example uses fictional planning records. Replace these with your own verified details.

→ 12 Btu/Wh

The built-in example uses fictional planning records. Replace these with your own verified details.

→ SEER2 18 · EER2 11.5

FAQ

No. Seasonal and full-load ratings use different test conditions. Enter both certified ratings from the same matched equipment; keep SEER2/EER2 separate from legacy SEER/EER.

Use your own records on the units and period shown. Verify current requirements, enter explicit zeros for absent amounts where requested and retain dated sources.

Choose Save planning case for local history. Copy MD includes current inputs, notes and interpretation; Download CSV exports the result breakdown. Keep a portable copy separately.

About Cooling Efficiency and Matched Rating Record

Calculate an energy-efficiency ratio from cooling output and total electrical input measured or published at the same operating condition. COP is a unit conversion of that ratio. This does not derive a seasonal rating or produce an AHRI-certified EER2. Record a seasonal rating and full-load rating from the same matched system certificate and rating generation. Both values must be supplied. This retains the source pair without inventing a conversion between them or predicting power at another temperature.