Vegan Diet Carbon Footprint Calculator
Calculate environmental impact reduction from a vegan diet compared to meat-based diet.
Formula
CO₂ saved = vegan meals × (meat meal CO₂ - vegan meal CO₂)
- Typical meat meal: 2.5 kg CO₂, 700L water, 0.4 m² land
- Typical vegan meal: 0.5 kg CO₂, 100L water, 0.05 m² land
- Calculations based on lifecycle analysis of production
- Individual impact varies by food choices and farming methods
Example
Inputs
- Days Vegan (per year): 365
- Meals per Day: 3
1 year fully vegan (1,095 meals): ~2,130 kg CO₂ + 636,500L water saved
Frequently asked questions
How accurate is this?
Rough estimate. Actual impact depends on local food sources, transportation, and farming methods.
Does vegan include dairy/eggs?
Strict vegan in this calculator means plant-based only. Vegetarian includes dairy/eggs but would have less savings.