Céatadán go codanna-in aghaidh an mhilliúin (ppm), áireamhán tiontaithe uimhreacha.
Iontráil uimhir faoin gcéad agus brúigh an cnaipe Tiontaigh :
tiontaire ppm go faoin gcéad ►
1% = 10000ppm
Mar sin
x (ppm) = 10000 ⋅ x (%)
Sampla: faigh cé mhéad ppm atá i 1.7%.
x (ppm) = 10000 ⋅ 1.7% = 17000ppm
| Céatadán (%) | ppm | 
|---|---|
| 0% | 0 ppm | 
| 0.0001% | 1 ppm | 
| 0.001% | 10 ppm | 
| 0.01% | 100 ppm | 
| 0.1% | 1000 ppm | 
| 1% | 10000 ppm | 
| 2% | 20000 ppm | 
| 3% | 30000 ppm | 
| 4% | 40000 ppm | 
| 5% | 50000 ppm | 
| 6% | 60000 ppm | 
| 7% | 70000 ppm | 
| 8% | 80000 ppm | 
| 9% | 90000 ppm | 
| 10% | 100000 ppm | 
| 20% | 200000 ppm | 
| 30% | 300000 ppm | 
| 40% | 400000 ppm | 
| 50% | 500000 ppm | 
| 60% | 600000 ppm | 
| 70% | 700000 ppm | 
| 80% | 800000 ppm | 
| 90% | 900000 ppm | 
| 100% | 1000000 ppm | 
tiontaire ppm go faoin gcéad ►
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