Carbon Footprint Calculator UK
Enter your annual details for a precise estimate in kgCO2e.
Steps to Use
- Input your yearly gas and electricity from bills.
- Select car type and enter miles driven.
- Add flight numbers (short: <1000km return, e.g. UK-Europe; long: >3000km).
- Choose diet and weekly grocery spend.
- Estimate weekly bin waste; click Calculate.
Calculation Methods
Emissions derive from UK government factors. Gas: 0.202kgCO2e/kWh. Electricity: 0.233kgCO2e/kWh (2023 grid). Car: petrol 0.21kg/mile, diesel 0.25kg/mile, hybrid 0.12kg/mile, electric 0.06kg/mile. Short flight: 0.5tCO2e/return, long: 2tCO2e/return. Diet: meat 2t/year, balanced 1.5t, veggie 1t, vegan 0.7t. Shopping: 0.5kgCO2e/£. Waste: 0.5kgCO2e/kg.
FAQs
What counts as short flights? Returns under 1000km like London to Paris.
Does this include commuting? Yes, add all car miles.
How accurate for shared households? Divide bills by occupants for per-person view.
Updates for new data? Factors from latest BEIS/DEFRA reports.
Footprint Comparisons
| Category | Low Emitter | Average UK | High Emitter |
|---|---|---|---|
| Energy | 1,000kg | 1,300kg | 3,000kg |
| Car | 200kg | 1,700kg | 4,000kg |
| Flights | 0kg | 1,000kg | 4,000kg |
| Diet | 700kg | 1,500kg | 2,000kg |
| Total | 3,000kg | 5,500kg | 12,000kg |
Common Mistakes
- Overlooking indirect shopping emissions from goods production.
- Using monthly bills without annualising (multiply by 12).
- Ignoring public transport offsets (tool assumes car; subtract 0.05kg/mile if train/bus used).
- Forgetting multiple household members share energy/waste.
Reduction Ideas
- Switch to LED bulbs: cuts electricity 20%.
- Drive less, cycle: saves 0.2kgCO2e/mile.
- Meat-free days: reduces diet by 30%.
- Recycle more: halves waste emissions.