Product Lifecycle Rechner — Formel
## How to Calculate Product Lifecycle Impact
A lifecycle assessment (LCA) evaluates environmental impact from cradle to grave.
### Lifecycle Stages
1. **Raw materials**: Extraction and processing
2. **Manufacturing**: Assembly and production
3. **Transportation**: Distribution to consumer
4. **Use phase**: Energy consumed during use
5. **End of life**: Disposal, recycling, or landfill
### Formula
**Total CO2 = Materials + Manufacturing + Transport + (Annual Use * Years) + End of Life**
A lifecycle assessment (LCA) evaluates environmental impact from cradle to grave.
### Lifecycle Stages
1. **Raw materials**: Extraction and processing
2. **Manufacturing**: Assembly and production
3. **Transportation**: Distribution to consumer
4. **Use phase**: Energy consumed during use
5. **End of life**: Disposal, recycling, or landfill
### Formula
**Total CO2 = Materials + Manufacturing + Transport + (Annual Use * Years) + End of Life**
Lösungsbeispiel
A laptop with 10kg materials, 15kg manufacturing, 5kg transport, 20kg/year use, 5-year life, 3kg end-of-life.
- Use phase: 20 * 5 = 100 kg CO2
- Total: 10 + 15 + 5 + 100 + 3 = 133 kg CO2
- Annualized: 133 / 5 = 26.6 kg CO2/year
- Use phase share: 100 / 133 = 75.2%