SEER2 Savings Calculator

How much can a higher SEER2 save you?

This tool compares the annual running cost of your current SEER2 rating against a more efficient unit, using your system size, run hours, and state electricity rate. Enter the price difference to see the payback period.

Frequently asked questions

Is a higher SEER2 worth the extra cost?

In hot climates with high electricity rates and long cooling seasons, a higher SEER2 often pays back within a few years. In mild climates the payback is longer. The SEER2 savings calculator estimates both the annual savings and the payback period for your state.

Is a higher SEER2 worth it?

In hot climates with high run hours, a higher SEER2 often pays back within a few years. In mild climates the savings are smaller. This calculator estimates both the annual savings and the payback.

SEER to SEER2 conversion

The 2023 efficiency standard changed the test procedure, so the same equipment gets a slightly lower number under SEER2 than it did under SEER. The conversion is straightforward: SEER2 ≈ SEER × 0.95 (roughly 5% lower). Here are common conversions:

This is an approximation — exact conversions vary slightly by equipment model. For the full explanation of why the numbers changed, see our SEER vs SEER2 guide. To see whether upgrading to a higher SEER2 pays back in your climate, use the savings calculator below.