Epoxy Ratio Calculator
Choose a mix ratio, pick a unit, and get resin + hardener amounts with consistent rounding.

Mix ratio (by volume)

Use the exact A:B ratio from your manufacturer. Edit the fields to switch to Custom.

Ratio: 2:1
Select a preset ratio

Calculation mode

Select calculation mode

Total mode splits a batch size into resin + hardener. Resin-only mode scales from Part A.

Inputs

Results

Rounded to the nearest 1 ml.

Resin (A)

67 ml

Hardener (B)

33 ml

Total

100 ml

Recent calculations
Stored locally on this device for quick reference.

Up to 10 saved entries.

No calculations saved yet. Save a result to build your history.