Sealant tube estimator

Caulk Calculator

Estimate caulk or sealant tubes from joint length, bead width, bead depth, tube size, waste, and tube cost. Use it for trim, windows, siding gaps, tubs, counters, and quick punch-list material runs.

Units

Joint length (ft)Bead width (in)Bead depth (in)Waste / tooling loss (%)Tube size (fl oz)Cost per tube ($)

Tubes to buy

Sealant volume

Joint length

Rough cost

Sealant coverage changes by joint prep

Backer rod, joint depth, tooling loss, porous surfaces, product chemistry, movement rating, cure temperature, and cleanup can change real coverage. Match the estimate to the sealant label.

Android App

Need caulk and sealant tube estimates hands-free?

Use the Android app when you need voice input, offline use, material lists, or PDF export. Free, no ads, no accounts.

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Caulk tube formula

Bead volume in³ = length ft × 12 × bead width in × bead depth in

Fluid ounces = bead volume ÷ 1.8047

Tubes = fluid ounces × (1 + waste %) ÷ tube size

Sample takeoff

A 180 ft trim run with a 0.25 in by 0.25 in bead, 10.1 oz tubes, and 15% waste needs about eight tubes.A 55 m trim run with a 6 mm by 6 mm bead, 300 ml tubes, and 15% waste needs about eight tubes.

Caulk Calculator FAQ

How does this caulk calculator work?+

It multiplies measured job dimensions by the coverage, spacing, or package yield you enter, adds waste, then rounds the buy quantity up. Use bead dimensions from the joint you will actually tool, not only the gap width.It multiplies measured job dimensions by the coverage, spacing, or package yield you enter, adds waste, then rounds the buy quantity up. Use bead dimensions from the joint you will actually tool, not only the gap width.

Should I use the default waste value?+

Use the default for a quick planning estimate, then raise it for cuts, odd layouts, breakage, bad access, or product-specific loss.Use the default for a quick planning estimate, then raise it for cuts, odd layouts, breakage, bad access, or product-specific loss.

Is this a bid or code approval?+

No. It is a material planning calculator. Verify product data, local code, structural requirements, electrical requirements, and supplier packaging before ordering or building.No. It is a material planning calculator. Verify product data, local code, structural requirements, electrical requirements, and supplier packaging before ordering or building.