Epoxy Resin Mix Ratio Calculator
Get the exact resin and hardener amounts for any mix ratio.
Mix ratio and known amount
Use any consistent volume unit (oz, mL, cups) for both the ratio and the amount — the math doesn’t care which, only that they match. Not sure your product’s ratio? Check the reference chart or its label.
Resin: 200 · Hardener: 100 · Total: 300
Frequently asked questions
- What if I only know how much resin I have left?
- Switch "I know my..." to "Resin amount I have" and enter it — the calculator scales the hardener (and total) to match at your ratio.
- Does it matter what unit I use?
- No — ounces, mL, cups, or any other volume unit all work the same, as long as you use the same unit for every field in one calculation.
- Where do I find my product's mix ratio?
- Check the bottle or the product's technical data sheet first — it's the authoritative source for your exact product. The reference chart lists ratios for several common named products if you don't have the packaging handy.