Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Personal Climate Action Impact Calculator
Quantify the total CO₂ reduction from combining lifestyle changes like diet, transport, energy, consumption, and waste. Use it to prioritize which personal actions deliver the biggest climate benefit.
Annual CO₂ Reduction
3,300 lbs CO₂
2,000-5,000 lbs offsets about 6-14% of the average footprint. Stacking diet and home-energy measures typically lands you in this range.
This is your annual CO2 reduction in pounds; the average US per-capita footprint is about 35,000 lbs (16 tons), so these bands measure your cut against that total.
Home Energy Efficiency Upgrade Calculator
Calculate the payback period in years for home energy upgrades — insulation, new windows, or a new HVAC system — based on your home size, current energy bill, climate zone, and available rebates.
Key differences
| Personal Climate Action Impact Calculator | Home Energy Efficiency Upgrade Calculator | |
|---|---|---|
| Category | Climate | Climate |
| Inputs required | 5 | 5 |
| Result | Annual CO₂ Reduction (lbs CO₂) | Annual Net Savings After 15 Years ($) |
| What it does | Quantify the total CO₂ reduction from combining lifestyle changes like diet, transport, energy, consumption, and waste. Use it to prioritize which personal actions deliver the biggest climate benefit. | Calculate the payback period in years for home energy upgrades — insulation, new windows, or a new HVAC system — based on your home size, current energy bill, climate zone, and available rebates. |