Heart Shape Resin Calculator – Calculate Resin for Heart Molds
Calculate the exact amount of epoxy resin for any heart-shaped mold. Use the water measurement method to find the exact volume, enter it into the calculator, and get precise resin and hardener amounts. Perfect for Valentine's gifts, jewelry, and decorative pieces.
Heart Shape Resin Calculator
V ≈ known mold volume
Fill your mold with water, then measure the water in ml.
Visual Output
How to Measure a Heart Mold for Resin
Fill the Mold with Water
Place on a flat, level surface. Fill completely with water to the desired pour level.
Measure the Water Volume
Pour the water into a measuring cup or graduated cylinder. Read the volume in milliliters (ml).
Enter as Known Volume
Type the ml reading into the calculator above, choose your mixing ratio, and click Calculate. Dry your mold completely before pouring resin.
Common Heart Shape Resin Projects
Heart Coasters
10 × 10 × 0.5 cm = ~30–40 ml. Add dried flowers or glitter for a personalized gift.
Valentine's Gifts
Small pendants: 3–5 ml. Trinket dishes: 25–35 ml. Mix with red, pink, or gold pigments.
Heart Keychains
4 × 4 × 0.8 cm = ~8–10 ml. Mix 100 ml to make 10+ keychains in a batch.
Resin Calculator for Shapes
Volume formulas and resin calculations for every common mold shape.
Circle Resin Calculator
V = π × r² × D
Enter the diameter and depth. The resin calculator multiplies π × radius² × depth to get the volume in ml. Coasters, clock faces, and round trays use this formula.
Cylinder Resin Calculator
V = π × r² × H
Enter the diameter and height of your cylindrical mold. The formula calculates the volume for pillar molds, candle molds, vases, and pen holders.
Hollow Cylinder Resin Calculator
V = π × (R² − r²) × H
Enter the outer diameter, inner diameter, and height. Calculates resin for the wall only. Perfect for bangles, rings, and tube castings.
Rectangle Resin Calculator
V = L × W × D
The simplest formula. Length × width × depth in centimeters gives you the volume in milliliters. Trays, tabletops, and mold frames are rectangular.
Square Resin Calculator
V = S² × D
Measure one side and the depth. Since all sides are equal, the formula simplifies to side² × depth. Square coasters, tiles, and trivets use this.
Oval Resin Calculator
V = π × a × b × D
An oval uses π × semi-major axis × semi-minor axis × depth. Measure the longest and shortest diameters, divide each by 2, and multiply with π and depth.
Hexagon Resin Calculator
V = (3√3 / 2) × s² × D
Measure the side length of the hexagon. The area is (3√3 / 2) × side². Multiply by depth for the volume in cubic centimeters. Hexagon coasters and tiles use this formula.
Heart Shape Resin Calculator
V ≈ known mold volume
Heart molds are irregular. Fill your mold with water, measure the water in ml, then enter that as "known volume" in the resin calculator. This gives you the exact amount of epoxy resin needed.
Heart Shape Resin Calculator FAQ
Common questions about calculating resin for heart-shaped molds.
Heart molds are irregular. Fill the mold with water, pour into a measuring cup, and read the ml. Enter that as the known volume in the calculator above.
Heart shapes have curved, asymmetric edges. Measuring length × width would overestimate volume. The water method gives the true volume.
Small hearts (5 × 5 × 1 cm): 15–20 ml. Medium (10 × 10 × 1.5 cm): 80–100 ml. Large trays (20 × 20 × 1 cm): 200–250 ml.
Fill mold with water → pour into measuring cup → read the ml → enter as known volume. Works for any irregular shape.
Valentine's gifts, jewelry pendants, coasters, trinket dishes, keychains, and wedding favors.
Yes. Pour a thin base layer, let it partially cure, place embedments, then pour the rest.