Automotive Paint Calculator

Calculate PVC (pigment volume concentration) and paint quantity for automotive panels from area, DFT, volume solids, and spray transfer efficiency.

Total panel area (m²)

Target DFT (µm)

Volume solids (%)

Transfer efficiency (%)

Pigment volume (mL)

Binder volume (mL)

Tab to move between fields

PVC (%)

Paint needed (L)

2.31

Lambda (PVC/CPVC)0.48

Quarts to purchase3

Theoretical volume (L)1.5

Wet film thickness (µm)125

Coverage rate (m²/L)8

How to Use This Calculator

Enter vehicle panel area (m2 or sq ft) to be painted and select paint system (basecoat-clearcoat, single-stage).
Enter dry film thickness (DFT) target (microns) and application efficiency (%).
Read paint volume required (liters or gallons) at the specified DFT.
Review reducer and hardener ratios to prepare the correct mix volume per pot.
Account for flash times between coats and plan spray booth time based on total applied volume.

How the result changes with Binder volume (mL)

Total panel area (m²): Combined area of all panels to paint. Full car body ≈ 10–14 m².
Target DFT (µm): Dry film thickness target. Basecoat 15–25 µm, clearcoat 40–75 µm.
Volume solids (%): From the paint TDS. Automotive basecoats: 25–35%, clearcoats: 45–55%.
Transfer efficiency (%): HVLP ~65%, conventional spray ~30–45%, electrostatic ~85%.
Pigment volume (mL): Volume of pigment in a sample for PVC calculation.
Binder volume (mL): Volume of binder (resin + additives) in the same sample.

PVC (%): Pigment Volume Concentration = pigment / (pigment + binder) × 100.
Lambda (PVC/CPVC): Ratio to critical PVC (ref 42%). Values > 1 = above CPVC (matte, porous film).
Paint needed (L): Practical paint volume accounting for overspray losses.
Quarts to purchase: Number of quarts (0.946 L) rounded up.
Theoretical volume (L): Paint volume with zero waste.
Wet film thickness (µm): WFT = DFT / (volume solids / 100).
Coverage rate (m²/L): Theoretical spreading rate at target DFT.

Identify Input Parameters
4 parameters
Total panel area (m²) = 12, Target DFT (µm) = 60, Volume solids (%) = 48, Transfer efficiency (%) = 65 = 6 input(s) provided
Calculate PVC
PVC = (pigmentVolume / (pigmentVolume + binderVolume)) * 100
20 = 20
Calculate Paint needed
Paint needed = theoreticalVolume / (transferEfficiency / 100)
2.308 = 2.308
Calculate Lambda
Lambda = pvc / cpvcRef
0.476 = 0.476
Calculate Quarts to purchase
Quarts to purchase
3 = 3