How to convert number in percent (%) to parts-per million (ppm).
1% = 1/100
1ppm = 1/1000000
So, one percent is equal to 10000 parts-per million:
1% = 10000ppm
So
x(ppm) = 10000 ⋅ x(%)
Convert 1.7% to ppm:
x(ppm) = 10000 ⋅ 1.7% = 17000ppm
ppm to percent calculation ►