Resin Volume to Weight Calculator
Turn a resin volume into a weight (or the cost of a pour) using its density. Enter how many millilitres of photopolymer resin you have used or plan to use and the tool returns the grams, and optionally the dollar cost if you supply a price per litre.
Enter Values
Before you rely on this: First-pass guide only. Verify safety-critical or regulated work against the relevant standards, your project requirements and a qualified professional.
How to use this calculator
- Enter the resin volume in millilitres (1 mL = 1 cm³).
- Adjust the resin density if your data sheet differs from the 1.1 g/cm³ default.
- Optionally enter the resin price in $/L to also see the cost of that volume.
How it works
Because a millilitre is exactly one cubic centimetre, the weight in grams equals the volume in millilitres multiplied by the density in g/cm³. For cost, the volume is converted from millilitres to litres (÷1000) and multiplied by the price per litre. To reverse the calculation, divide a known weight by the density to recover the volume.
Worked example
Worked example. 100 mL of resin at 1.1 g/cm³ weighs 100 × 1.1 = 110 g. At $40 per litre that same 100 mL costs (100 ÷ 1000) × $40 = $4.00.
Common mistakes
- Guessing the density — resins range from about 1.05 to 1.25 g/cm³, so use the value on your resin's data sheet for accuracy.
- Mixing units: this tool expects millilitres for volume and $/L for price, not litres or $/mL.
- Forgetting the resin still in the vat and drainage — the printed part uses less than the total poured.
Frequently asked questions
Why is 1 mL the same as 1 cm³?
The millilitre and the cubic centimetre are defined to be identical units of volume, so no conversion factor is needed between resin volume in mL and the cm³ used with density.
What density should I use?
Check your resin's technical data sheet. Standard, tough and water-washable resins vary; 1.1 g/cm³ is a sensible middle-of-the-road default when you do not know the exact figure.
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Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.