EcoPlate

Plant-Based Diet Carbon Footprint

Estimate the CO₂ impact of a plant-based diet — and see how simple swaps compound over a year.

How many servings per week do you eat of each?

Fresh vegetables & salads

Legumes, pulses & tofu

Rice-based meals

Whole grains (oats, wheat, quinoa)

Fruits, nuts & seeds

Packaged / processed foods

Annual food emissions

957 kg CO₂e

Around average for a plant-based diet.

Per week: 18.4 kg CO₂e
Per day: 2.63 kg CO₂e

Breakdown by food group

Fresh vegetables3.00 kg/wk
Legumes & pulses2.00 kg/wk
Rice-based meals4.00 kg/wk
Whole grains3.00 kg/wk
Fruits, nuts & seeds2.80 kg/wk
Packaged / processed3.60 kg/wk

What you entered

Food groups tracked: 6

1
vegetables: servings × emission factor
10 × 0.3 kg CO₂e= 3.00 kg/wk
2
legumes: servings × emission factor
5 × 0.4 kg CO₂e= 2.00 kg/wk
3
rice: servings × emission factor
4 × 1 kg CO₂e= 4.00 kg/wk
4
wholeGrains: servings × emission factor
6 × 0.5 kg CO₂e= 3.00 kg/wk
5
fruitsNuts: servings × emission factor
7 × 0.4 kg CO₂e= 2.80 kg/wk
6
packaged: servings × emission factor
3 × 1.2 kg CO₂e= 3.60 kg/wk
7
Sum weekly emissions
3.00 + 2.00 + 4.00 + 3.00 + 2.80 + 3.60= 18.40 kg/wk
8
Scale to a year
18.40 × 52 weeks= 957 kg/yr

Result

Annual food emissions: 957 kg CO₂e

Your current mix of servings works out to about 957 kg CO₂e per year — packaged/processed foods and rice-based meals tend to carry the highest footprint per serving among plant-based options, so trimming those first has the biggest impact.

Weekly diet carbon footprint by eating pattern

Each food group carries a carbon cost per serving: 0.3 kg for vegetables, 0.4 for legumes and for fruit and nuts, 0.5 for whole grains, 1.0 for rice, and 1.2 for packaged foods.

Eating pattern	Weekly servings	Weekly CO2e	Yearly CO2e
Plant-heavy	77 servings, no packaged food	34.30 kg	1,783.6 kg
Balanced	52 servings, 3 packaged	26.70 kg	1,388.4 kg
Moderate	42 servings, 7 packaged	24.90 kg	1,294.8 kg
Convenience	47 servings, 14 packaged	38.00 kg	1,976.0 kg

Plant-heavy shows a higher weekly total than moderate simply because it counts more servings overall; compare the footprint per serving rather than the raw weekly figure.

Where plant-based emissions come from

Even a fully plant-based diet has a carbon footprint. Rice paddies release methane. Out-of-season produce may be air-freighted. Highly processed foods carry packaging and processing emissions. Whole, local, seasonal foods stay closer to their raw carbon cost.

Small swaps that add up

Choose seasonal, local produce when possible. Prefer whole grains and pulses over pre-packaged meals. Buy in bulk to cut packaging. Cook in larger batches to spread the energy cost of stove and oven use.

Frequently asked questions

I eat mostly vegetables, beans, and rice — what's my annual carbon footprint from food?

A typical plant-based diet produces roughly 1.0–1.5 tonnes CO₂e per year. By comparison, an average omnivorous diet in the US produces about 2.5 tonnes CO₂e annually. The biggest plant-based contributors are rice (methane from paddies), out-of-season air-freighted produce, and processed packaged foods.

Is a plant-based diet always lower-carbon than eating meat?

Almost always, yes. Beef alone produces about 60 kg CO₂e per kg of food — roughly 20× more than most plant proteins like lentils or beans. Even the highest-carbon plant foods (air-freighted asparagus, greenhouse-grown tomatoes) produce far less per calorie than beef, lamb, or dairy.

What's the single biggest swap to reduce my food carbon footprint?

Replacing beef with legumes (beans, lentils, chickpeas) has the largest per-meal impact. Swapping two beef dinners per week for bean-based meals can save roughly 300–400 kg CO₂e per year — more than the savings from going fully local on all other foods.