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Calcimator

Home Energy Audit Calculator

Evaluate your home's energy efficiency and find potential savings from upgrades like better windows and insulation.

Inputs

$
$
sq ft
years

Results

Annual Energy Cost

$2,760

Cost Per Sq Ft$1.38
Efficiency RatingGood
Potential Annual Savings$414
Upgrade Payback3.6 years

Annual Energy Cost

$2,760

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Monthly Electric Bill — Average monthly electricity cost from your utility bill Accepts values from $0 to $1,000 (default: $150).
  3. Monthly Gas Bill — Average monthly natural gas cost — enter 0 if all-electric home Accepts values from $0 to $500 (default: $80).
  4. Home Size — Total heated and cooled living area of your home in square feet Accepts values from 100 sq ft to 20,000 sq ft (default: 2,000 sq ft).
  5. Home Age — How old your home is — older homes tend to be less energy efficient Accepts values from 0 years to 150 years (default: 25 years).
  6. Windows — Type of window glass installed — more panes means better insulation Choose from: Single Pane, Double Pane, Triple Pane. default: 1.
  7. Insulation — Overall quality of your home's wall and attic insulation Choose from: Poor, Average, Good. default: 1.
  8. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  9. Annual Energy Cost — shown as a dollar amount. This is the primary result of this calculator.
  10. Cost Per Sq Ft — shown as a dollar amount.
  11. Efficiency Rating — your calculated result.
  12. Potential Annual Savings — shown as a dollar amount.
  13. Upgrade Payback — shown as a numeric value.
  14. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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