🧴 Caulk & Sealant Calculator
Joint and bead
Total joint length
(add up every run — around the tub, every window, all the trim)
Bead width
(match the gap you are filling)
1/8 in (3 mm) — fine cosmetic bead
3/16 in (5 mm)
1/4 in (6 mm) — the standard joint
3/8 in (10 mm)
1/2 in (12 mm)
Bead depth
(about the width on narrow joints, half the width on wide ones)
1/8 in (3 mm)
3/16 in (5 mm)
1/4 in (6 mm)
3/8 in (10 mm)
1/2 in (12 mm)
Tube size
10.1 fl oz (300 ml) — standard caulk-gun cartridge
5.5 fl oz (163 ml) — squeeze tube
20.1 fl oz (600 ml) — sausage pack
Waste allowance (%)
(extra for cuts, spills and uneven ground — 10% is the usual rule)
Calculate tubes
Calculator by
CalcCoverage
— free DIY & home-improvement calculators