Split a production total into recycled, leaked, and residual megatonnes from two percentages.
| Recycled Mt | – |
| Leaked Mt | – |
| Residual Mt | – |
Use this calculator for a national or global plastic-mass sketch when you have a production figure and headline recycle and leak rates.
The calculation is: recycled = production × recycle %. Leaked = production × leak %. Residual = production − recycled − leaked. Recycle % + leak % must be at most 100. Both percentages apply to the same production total, not to the leftover after the other.
This is mass accounting, not a full material-flow analysis. Incineration, export, and stock in use sit inside residual unless you fold them into the two rates.
Production (Mt): Yearly plastic production in megatonnes. 400 is a recent global-scale figure.
Recycle (%): Share of that production counted as recycled, 0–100.
Leak (%): Share counted as leaked to the environment, 0–100.
Recycled Mt: Production × recycle %.
Leaked Mt: Production × leak %.
Residual Mt: What is left after both shares.
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