Free online calculator

Mixing calculator

Many workshops still fill their coolant tanks by hand. This calculator tells you which concentration to top up with to hit your target concentration exactly – including the precise amount of water and concentrate.

1Tank & target concentration

Total tank volume in litres

Total capacity of the tankTarget concentration in %

Your desired coolant concentrationMissing volume in litres

Amount you want to top up

2Current actual concentration

The refractometer shows a Brix value – not the concentration. Multiply it by the coolant factor from the data sheet.

Brix value (refractometer)

°Bx

The value you read directly on the handheld refractometer (in °Brix).Refractometer factor

Coolant-specific – see the product data sheet (typ. 1.0–2.5). Actual concentration = Brix × factor. Factor unknown? Enter 1.

Brix × factor = actual concentration—%

3Read the result

Required top-up mixture

0.00 %

Enter all values to calculate the mixing ratio.

Never mix by hand again?

DOSIMETRIX® hybrid with the eMix1500 tops up fully automatically – accurate to ±0.1%.

Discover DOSIMETRIX® hybrid →

Coolant concentration automatically instead of by hand

In 20 minutes we will show you how DOSIMETRIX® hybrid takes over topping up for you.

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