Ecology

Plastic Footprint Calculator

Estimate the plastic-bottle waste you create per year.

Calculated Output

Plastic per year 3.64

Bottles per year 364

Formula: kg/year = bottles/week × 52 × grams ÷ 1000

Step-by-Step Breakdown

1. Values used:

2. Plastic bottles per week = 7

3. Plastic per bottle = 10

5. Plastic per year = 3.64

6. Bottles per year = 364

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The math behind it

kg/year = bottles per week × 52 × grams per bottle ÷ 1000. A single-use bottle weighs ~10 g.

7 bottles/week → 364/year ≈ 3.6 kg.

Cut it down?

A reusable bottle can eliminate hundreds of single-use bottles per year.