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Calcimator

Model Paint Coverage Calculator

Calculate how much paint you need for model kits based on surface area, coats, and whether the surface is primered.

Inputs

Results

Paint Needed (ml)

4

Bottles Needed (17ml)

1

Paint Needed (oz)0.14
Primer Needed (ml)1.83
Est. Paint Cost$4.00
How to Use This Calculator
  1. Enter Surface Area (sq inches), Number of Coats, and Paint Coverage (sq in/ml).
  2. Set Surface Primered?, No (bare plastic/resin), and Yes (primered surface).
  3. Review Paint Needed (ml) and Bottles Needed (17ml).
  4. Use Paint Needed (oz) and Primer Needed (ml) to inform your decision.
  5. Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Surface Area (sq inches)

Surface Area (sq inches)Paint Needed (ml)Bottles Needed (17ml)
50140.083
1,751140.089
3,25026016
4,50036022

What each input means

Surface Area (sq inches)
Total surface area of the model to be painted in square inches
Number of Coats
Number of paint coats for good coverage (2-3 recommended for most paints)
Paint Coverage (sq in/ml)
Coverage rate of your paint (typically 20-40 sq inches per ml for hobby paint)
Surface Primered?
Primered surfaces require less paint for even coverage

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Surface Area (sq inches) = 50, Number of Coats = 2, Paint Coverage (sq in/ml) = 30, Surface Primered? = 0 = 4 input(s) provided
  2. Calculate Paint Needed
    Paint Needed
    4 = 4
  3. Calculate Bottles Needed
    Bottles Needed
    1 = 1
  4. Calculate Paint Needed
    Paint Needed
    0.14 = 0.14
  5. Calculate Primer Needed
    Primer Needed
    1.83 = 1.83

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