Resin Print Cost Calculator
Resin price per liter and the milliliters a model consumes give the material cost of a resin print — the number to build a price on. Your own resin price and volumes.
Material cost of a resin print
The material cost of a resin print is calculated as: Material Cost = (Model Volume in milliliters) × (Resin Price per Liter / 1000). This formula converts the resin price from per liter to per milliliter by dividing by 1000, then multiplies by the model's volume to get the exact cost of resin consumed. The reason for this calculation is that resin is typically sold by the liter, but model volumes are measured in milliliters for precision; using milliliters avoids fractional liters and aligns with common slicer outputs. The cost is strictly proportional: if a model uses 50 ml and resin costs $30/L, the cost is 50 × (30/1000) = $1.50. This does not include waste, supports, or failed prints—only the resin directly in the model. For a pricing strategy, you would add a markup for overhead (printer depreciation, electricity, labor) and profit margin. The formula assumes 100% success and no spillage; in practice, add 10-20% for waste.
Etsy Seller: Miniature Figure
A seller prints a 28mm miniature for tabletop gaming. The slicer reports a model volume of 12 ml. They use standard gray resin priced at $28 per liter. Material cost = 12 ml × ($28 / 1000) = 12 × $0.028 = $0.336. So the resin cost is about $0.34 per miniature.
Jewelry Designer: Custom Ring
A jewelry designer casts a resin master for a ring. The model volume is 3.5 ml. They use a high-detail castable resin at $85 per liter. Material cost = 3.5 × ($85 / 1000) = 3.5 × $0.085 = $0.2975 ≈ $0.30 per master. This low cost allows high profit margins on final cast pieces.
Hobbyist: Large Bust
A hobbyist prints a 1/6 scale bust for personal use. The slicer shows 185 ml volume. They use a standard resin on sale for $22 per liter. Material cost = 185 × ($22 / 1000) = 185 × $0.022 = $4.07. This helps them decide if the project is worth starting.
A 'good' material cost is relative to your business model. For hobbyists, anything under $5 is often acceptable, but for commercial sales, material cost should typically be under 20-30% of the final selling price to leave room for overhead, labor, and profit. Resin costs vary widely: standard resins range from $20-$40 per liter, engineering resins $50-$150, and jewelry/castable resins $80-$200+. Model volumes depend on size and hollowing; a hollowed miniature might use 5-15 ml, while a solid bust can exceed 200 ml. Always consider waste from supports, calibration, and failed prints—add 10-20% to the calculated cost. There is no universal 'average' because resin prices and model scales differ drastically. The key principle is to know your total cost per print (including waste) and ensure your pricing covers it.
A common mistake is forgetting to convert liters to milliliters, leading to costs off by a factor of 1000. Another is using the resin price after tax or shipping without noting it, causing inconsistent pricing. Many ignore support volume—slicers often report only model volume, but supports can add 10-30% more resin. Edge cases: very small models (under 1 ml) have negligible material cost but significant overhead; very large models may hit resin vat capacity limits, requiring multiple pours. Also, some resins have different densities, but volume-based pricing is standard. Finally, assuming 100% success rate is unrealistic; factor in failed prints as a percentage increase.
- Model Volume
- The volume of the 3D model as calculated by slicer software, typically in milliliters, representing the resin that will be cured.
- Resin Price per Liter
- The cost of one liter of liquid resin, usually the purchase price from a supplier.
- Material Cost
- The direct cost of the resin consumed by a single print, excluding waste, supports, and other expenses.
- Slicer
- Software that converts a 3D model into layer-by-layer instructions for a printer and reports volume and other metrics.
- Waste Factor
- A percentage added to material cost to account for resin lost in supports, calibration prints, spills, or failed prints.
Does this calculator include the cost of supports?
No, it only uses the model volume you enter. Supports add extra resin; you should add 10-30% to the volume to account for them.
Should I use the price I paid for resin including shipping?
Yes, your true cost is what you paid to get it to your door, including tax and shipping.
What if my slicer shows volume in cubic centimeters?
1 cubic centimeter (cc) equals 1 milliliter, so you can use the same number.
How do I price my prints for sale based on this cost?
A common rule is material cost should be 10-20% of the sale price, but adjust for your overhead and desired profit.
Why is my calculated cost so low for tiny models?
Small models use very little resin; the cost is dominated by other factors like printer wear, electricity, and your time.
Can I use this for any resin type?
Yes, as long as you input the correct price per liter for that specific resin.
What if I hollow my model?
Hollowing reduces volume and thus material cost. Enter the hollowed volume from your slicer.
How do I handle resin left in the vat after printing?
That resin is not consumed, so it does not affect the cost of that print. Only the resin that is cured counts.
Apex print-ready models come with the specs and a commercial license, so you can price and sell resin prints with confidence.
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