Concrete Crack Filler Calculator
Estimate concrete crack-filler volume, full cartridges, linear yield, purchased volume and material cost from total crack length and average prepared dimensions.
Default project preview
11 cartridges
Required filler
109.7 fl oz
Yield per cartridge
12.2 ft
Base filler volume
99.7 fl oz
Purchased filler
111.1 fl oz
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Input and output guide
What each value means
The labels and units below are part of this calculator’s visible methodology. Replace every default with measurements or product data from the actual project.
Total prepared crack length
Enter this project assumption in ft. The current imperial default is 120 ft.
Average crack width
Enter this project assumption in in. The current imperial default is 0.25 in.
Average fill depth
Enter this project assumption in in. The current imperial default is 0.5 in.
Extra allowance
Enter this project assumption in %. The current imperial default is 10 %. Minimum: 0. Maximum: 50.
Filler per cartridge
Enter this project assumption in fl oz. The current imperial default is 10.1 fl oz.
Price per cartridge
Enter this project assumption in a unitless value. The current imperial default is 12. Minimum: 0.
How to read the outputs
Required filler
prepared crack volume. Default preview: 109.7 fl oz.
Yield per cartridge
at entered width and depth. Default preview: 12.2 ft.
Base filler volume
before allowance. Default preview: 99.7 fl oz.
Purchased filler
full cartridges. Default preview: 111.1 fl oz.
Unused capacity
above estimated need. Default preview: 1.4 fl oz.
Material cost
filler cartridges only. Default preview: $132.00.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Filler volume = crack length × prepared width × fill depth. The allowance is applied before cartridge quantity is rounded up.
Reviewed project guidance
How to use this estimate in a real project
Last reviewed: July 30, 2026
Estimate crack-filler volume from measured crack length, average width and average depth. Use separate calculations for hairline routing, gravity-fed repairs and wider moving cracks because products and preparation differ.
Calculation steps
- 1Measure representative crack width and prepared depth at several locations.
- 2Separate cracks that require different products or preparation.
- 3Calculate volume using consistent units and add application loss.
- 4Round to full cartridges, kits or pails using net usable yield.
Worked numerical example
A routed crack 85 ft long, 1/4 in wide and 3/8 in deep contains about 95.6 in³. At 20 in³ usable yield per cartridge, order five cartridges plus the project allowance.
Purchasing and rounding
Use the selected product’s usable mixed volume, not package weight alone. Two-component materials may have minimum mixing units and short pot life, so package size should match crew production.
Interpret the result
The estimate describes fill volume, not the cause or structural significance of the crack. Active movement, water leakage, corrosion or differential settlement requires diagnosis before repair.
Page-specific assumptions
- Average width and depth represent the prepared repair profile.
- Loose material has been removed before measurement.
- Product shrinkage and application loss are handled by the allowance.
Common mistakes
- Measuring only visible surface width before routing.
- Using rigid filler in an active moving joint.
- Ignoring moisture or contamination.
- Treating a structural crack as a cosmetic quantity problem.
Primary and technical references
BuildMeter provides planning estimates, not engineering, architectural, electrical, mechanical, plumbing, permit or code approval. Review the methodology and verify final decisions with product documentation and qualified professionals.
BuildMeter Guides
Understand the measurements and assumptions
Use these visible reference guides before changing project inputs or planning allowances.
FAQ
Concrete Crack Filler Calculator questions
Should loose concrete be removed first?+
Repairs generally require clean, sound edges and a prepared depth suited to the selected product.
When is backer rod useful?+
Backer rod can control sealant depth and shape in wider joints, subject to the filler manufacturer’s instructions.
Will filler repair a structural crack?+
Filler can seal a prepared joint but does not correct the cause of structural movement.