Carbon Footprint Calculator
Calculate macronutrient ratios and daily targets for protein, carbohydrates, and fats.
Transportation
Home Energy
Lifestyle
Carbon Footprint Facts
- • Global average: 4.8 tons CO₂ per person annually
- • US average: 16.0 tons CO₂ per person annually
- • Paris Agreement target: 2.0 tons CO₂ by 2050
- • One tree absorbs ~48 lbs CO₂ annually
Your Carbon Footprint
CO₂ equivalent annually
Breakdown by Category
Comparisons
Reduction Scenarios
How it works
A carbon footprint calculator estimates the greenhouse gases your activities produce, in CO₂-equivalent. It multiplies each activity — driving, flying, home energy, diet — by an emission factor (the CO₂ released per unit) and adds them up.
Emissions from activity
CO₂ = Σ (activity amount × emission factor)
- activity amount
- miles driven, kWh used, etc.
- emission factor
- CO₂ released per unit of that activity
Worked example
- Drive 12,000 miles/year
- ≈ 0.4 kg CO₂ per mile (average car)
- 12,000 × 0.4
≈ 4,800 kg (4.8 tonnes) CO₂ from driving alone.
Good to know
- The average person's footprint is several tonnes of CO₂ per year; transport and home energy usually dominate.
- Biggest levers: driving and flying less, home efficiency, and diet.
- Emission factors vary by region's energy mix, so estimates are approximate.
Related Calculators
Frequently Asked Questions
What are good macro ratios for weight loss?
Higher protein (25-35%), moderate carbs (30-40%), moderate fat (25-35%). Protein helps preserve muscle during weight loss and increases satiety.
How much protein do I need daily?
Active individuals need 0.8-1.2g per pound of body weight. Strength athletes may benefit from 1.2-1.6g per pound for muscle building and recovery.
Should I track macros or just calories?
Start with calories for weight management, then add macro tracking for body composition goals. Protein is the most important macro to track consistently.
How can I be more productive?
Use tools that fit your workflow, automate repetitive tasks, minimize distractions, and review processes regularly.
What if results seem wrong?
Double-check inputs, verify units match, ensure using correct tool, and consult documentation if needed.
Can I save my calculations?
Most calculators allow copying results. Consider keeping a spreadsheet or document for important calculations.
How accurate are these tools?
Calculators use standard formulas and algorithms. Accuracy depends on input precision and appropriate tool selection.