Caulk Quantity Calculator

Estimate how many tubes of caulk you need for sealing windows, doors, bathrooms, and kitchens based on gap width and total linear footage.

Number of Windows

Number of Doors

Bathroom Linear Feet

Kitchen Linear Feet

Average Gap Width

inches

Tab to move between fields

Total Linear Feet

221 ft

≈ 6 school buses

Tubes of Caulk Needed9

Estimated Cost$45.00

Application Time18.4 hours

How to Use This Calculator

Count Window Count and Door Count to estimate exterior and interior perimeter caulk requirements.
Measure Bath Linear Feet and Kitchen Linear Feet of joints needing caulk around tubs, sinks, and counters.
Set Gap Width to the average joint width in inches — wider gaps consume more caulk per linear foot.
Review Linear Feet Total to see the full scope of caulking work across all areas of the home.
Check Tubes Needed and Total Cost to purchase enough caulk with a small buffer for waste.
Use Application Time to schedule the project over one or two weekends based on your available hours.

How the result changes with Number of Windows

Number of Windows: Total windows to caulk. Each window averages about 12 linear feet of sealant.
Number of Doors: Exterior doors to caulk around frames. Each door averages about 17 linear feet.
Bathroom Linear Feet: Total linear feet of joints around tubs, showers, and bathroom fixtures.
Kitchen Linear Feet: Total linear feet around countertops, backsplashes, and kitchen fixtures.
Average Gap Width: Average width of gaps to fill. Standard is 1/4 inch; wider gaps use more caulk per foot.

Total Linear Feet: Combined linear footage of all areas to be caulked.
Tubes of Caulk Needed: Standard 10.3 oz tubes required, rounded up.
Estimated Cost: Total material cost at approximately $5 per tube.
Application Time: Estimated time to apply caulk at roughly 12 linear feet per hour.

Identify Input Parameters
4 parameters
Number of Windows = 10, Number of Doors = 3, Bathroom Linear Feet = 30, Kitchen Linear Feet = 20 = 5 input(s) provided
Calculate Total Linear Feet
Total Linear Feet
221 = 221
Calculate Tubes of Caulk Needed
Tubes of Caulk Needed
9 = 9
Calculate Estimated Cost
Estimated Cost
45 = $45