Water Effect Calculator — Resin & Ripple Volumes
Calculate resin, water effect and ripple product volumes for ponds, streams, rivers and sea features on your diorama.
Include ripple gel for surface texture
How We Calculate This
The calculator computes the volume of water effect product needed from the area and depth of your water feature. Two-part resin behaves as a liquid, so 1 cm³ ≈ 1 ml.
Formula
- Resin (ml) = Length (cm) × Width (cm) × Depth (cm)
- Pours needed = Total depth ÷ 3 mm per layer (rounded up) — resins should be poured in layers of 3 mm or less to avoid bubbles, heat and cracking
- Ripple gel (ml) = Surface area (cm²) × coverage rate — default ≈0.05 ml/cm² (a thin gel skim coat), adjustable under Advanced Options
- Sea / ocean adds a small surface allowance (≈0.1 ml/cm²) for raised wave modelling on top of the flat pour
The ripple-gel and sea-wave coverage figures are practical rules of thumb — no manufacturer publishes a ml/cm² coverage rate for surface gels, so treat them as starting estimates and adjust to your product.
Frequently Asked Questions
Related Calculators
Base Size Calculator
Calculate the right diorama base dimensions for your subject and scale.
Terrain Calculator
Estimate plaster, foam and scenic materials for terrain features.
Vegetation Calculator
Plan static grass, foliage, tree and ground cover quantities for your scene.
Lighting Calculator
Plan LED quantities, resistor values and power supply for diorama lighting.
Figure Placement Calculator
Calculate realistic spacing and grouping for figures in your diorama scene.
Last updated: February 2026
All calculations are estimates. Always verify quantities before purchasing materials.