Plastic Reduction Calculator — Formula
## How to Calculate Plastic Reduction Impact
Reducing single-use plastics saves resources and prevents pollution.
### Average Item Weights
- Plastic bag: ~0.02 lbs (8 grams)
- Plastic bottle: ~0.03 lbs (14 grams)
- Food container: ~0.03 lbs (15 grams)
### Formula
**Items Reduced = Weekly Items * 52 * Reduction %**
**Weight Saved = Items * Average Weight**
Each pound of plastic prevented saves about 3 lbs CO2 and 0.2 gallons of oil.
Reducing single-use plastics saves resources and prevents pollution.
### Average Item Weights
- Plastic bag: ~0.02 lbs (8 grams)
- Plastic bottle: ~0.03 lbs (14 grams)
- Food container: ~0.03 lbs (15 grams)
### Formula
**Items Reduced = Weekly Items * 52 * Reduction %**
**Weight Saved = Items * Average Weight**
Each pound of plastic prevented saves about 3 lbs CO2 and 0.2 gallons of oil.
Exemplo Resolvido
Reducing 10 bags, 7 bottles, 5 containers per week by 75%.
- Total annual: (10 + 7 + 5) * 52 = 1,144 items
- Items reduced: 1,144 * 75% = 858 items
- Plastic saved: 858 * 0.025 = 21.5 lbs
- CO2 saved: 21.5 * 3 / 2,204.6 = 0.029 metric tons