Varnish Coverage Calculator

Varnish volume from painting surface area.

Painting Width

Painting Height

Number of Coats

Varnish Type (0=Damar, 1=Acrylic, 2=Gamvar)

Method (0=Spray, 1=Brush)

Number of Paintings

Tab to move between fields

Varnish Needed

1.8 fl oz

Varnish Needed54 ml

Recommended Bottle Size4 fl oz

Estimated Varnish Cost$2.75

Painting Area5 sq ft

Coverage Rate6 sq ft/oz

Total Dry Time Between Coats2 hrs

How to Use This Calculator

Enter Painting Width, Painting Height, and Number of Coats.
Set Varnish Type (0=Damar, 1=Acrylic, 2=Gamvar), Method (0=Spray, 1=Brush), and Number of Paintings.
Review the Varnish Needed (fl oz) result.
Use Varnish Needed (ml) and Recommended Bottle Size (fl oz) to inform your decision.

How the result changes with Painting Width

Painting Width: Width of the painting in inches.
Painting Height: Height of the painting in inches.
Number of Coats: Number of varnish coats. Most paintings need 2-3 coats.
Varnish Type (0=Damar, 1=Acrylic, 2=Gamvar): 0 = damar (traditional), 1 = acrylic polymer, 2 = Gamvar/alkyd resin.
Method (0=Spray, 1=Brush): 0 = spray application, 1 = brush application.
Number of Paintings: Total paintings to varnish.

Varnish Needed: Total fluid ounces of varnish needed (includes 10% waste).
Varnish Needed: Total milliliters of varnish needed.
Recommended Bottle Size: Smallest standard bottle size that covers your needs.
Estimated Varnish Cost: Approximate cost of varnish needed.
Painting Area: Surface area of one painting.
Coverage Rate: Coverage rate for your varnish and application method.
Total Dry Time Between Coats: Total drying time needed between all coats.

Identify Input Parameters
4 parameters
Painting Width = 24, Painting Height = 30, Number of Coats = 2, Varnish Type (0=Damar, 1=Acrylic, 2=Gamvar) = 1 = 6 input(s) provided
Calculate Varnish Needed
Varnish Needed = flOzNeeded * 1.1
1.8 = 1.8
Calculate Varnish Needed
Varnish Needed = flOzWithWaste * 29.5735
54 = 54
Calculate Recommended Bottle Size
Recommended Bottle Size
4 = 4