Estimate your home's energy savings potential using DOE-based formulas. Get a fast directional estimate first, then use the report if you want an exact payback-first fix order.
What this calculator is best for
Use it to pressure-test whether your savings are likely to come from insulation, air sealing, thermostat changes, or plug-load cleanup before you spend money on the wrong fix.
Good for
Fast estimates, rough payback ranges, and deciding what to inspect first.
Upgrade path
If the numbers look meaningful, the $10 report turns them into a prioritized fix order.
📊 The Reality: The average US home wastes 20–30% of the energy it consumes. On a $2,000/year energy bill, that's $400–$600 in waste. This calculator shows you exactly where your savings are hiding — and how much each improvement is worth.
Your Home
Current State
Your Estimated Annual Savings
Turn the estimate into a real action plan
The calculator gives you the range. The next step depends on how much certainty you want before you start fixing things.
Improvement multipliers: Each insulation level = ~10% HVAC savings, air sealing = 5–15%, smart thermostat = 10–15%
How accurate is this calculator?
This provides estimates based on DOE averages. Actual savings depend on your specific home, local energy rates, and installation quality. Use this as a starting point — our $10 audit report provides precise calculations for your home.
What's the best ROI improvement?
For most homes, air sealing + attic insulation delivers the fastest payback (6–18 months). Smart thermostats are second (1–2 year payback). Window film is third (2–4 months for the film cost alone).
Should I get a professional audit first?
If your home is older (pre-1980) or you suspect hidden issues (moisture, duct leaks, asbestos), yes. Otherwise, our free checklist + this calculator will identify 80% of the savings opportunities.