Epoxy ratio calculator
Split a total quantity or calculate the missing component using your manufacturer’s ratio by mass or by volume.
Positive component ratios only. No conversion between ratio bases, cure-time calculation or permitted batch-size claim. Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Epoxy ratio calculator
- Enter your measurements, rates or supplied recipe.
- Review the quantities, rounding and plan details.
- Download the result and verify it against your actual materials or a sample.
Useful next steps
Use the product ratio and its basis
Enter component A and component B parts in the same order used by your product. Choose mass or volume exactly as specified. The calculator keeps those bases separate because densities can make a mass ratio different from a volume ratio.
Start from the quantity you know
For a 2:1 mass ratio and 300 g total, the result is 200 g A and 100 g B. Entering 200 g of A or 100 g of B produces the same mixture. The tool determines quantities only; follow the product instructions for mixing and curing.
Save the plan
Download the result as CSV, plus a text or JSON report with formulas, values and assumptions. Everything is calculated on your device. Changing units keeps the entered numbers, so check the selected units before using the plan.