Dissolved solids to conductivity, two ways

The same calculation run twice, side by side. Change anything on either side and the difference is shown output by output. This page is a link: both sets of numbers are in the address bar.

Side A open alone

t Total dissolved solids

ppm

What a TDS meter reads. Distilled water is under 1; tap water 50–500; sea water about 35 000.

r Conversion factor

The ppm-per-(µS/cm) factor the meter was calibrated with. 0.64 unless its manual says otherwise.

Side B open alone

t Total dissolved solids

ppm

What a TDS meter reads. Distilled water is under 1; tap water 50–500; sea water about 35 000.

r Conversion factor

The ppm-per-(µS/cm) factor the meter was calibrated with. 0.64 unless its manual says otherwise.

Swap sides

What changed

The two sides are the same. Change something on either.

Output	A	B	B against A
σ Conductivity	156.3 µS/cm	156.3 µS/cm	same

Side A, with its numbers

156.3 µS/cm = \frac{100}{}

LaTeX

156.3\,\mathrm{µS/cm} = \frac{100\,\mathrm{ppm}}{0.64}

Side B, with its numbers

156.3 µS/cm = \frac{100}{}

LaTeX

156.3\,\mathrm{µS/cm} = \frac{100\,\mathrm{ppm}}{0.64}