Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Rectangular constant-section joint; backing rods and profile shape can change use. Quantity estimate only. Confirm actual dimensions, openings, cutting patterns and supplier specifications. No structural design or code-compliance assessment.
Example Calculation
- Joint length: 20 m
- Joint width: 10 mm
- Joint depth: 5 mm
- Cartridge volume: 300 mL
- Waste allowance: 10 %
20 m of a 10×5 mm joint needs 1100 mL with 10% waste, or four 300 mL cartridges.
Frequently asked questions
How do I use this calculator?
Enter joint length, joint width, joint depth, cartridge volume, waste allowance. The result updates automatically. Use Reset to restore the example values.
What method does it use?
volume mL=length m × width mm × depth mm; cartridges=ceil(volume(1+waste)/cartridge).. Rectangular constant-section joint; backing rods and profile shape can change use. Quantity estimate only. Confirm actual dimensions, openings, cutting patterns and supplier specifications. No structural design or code-compliance assessment.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.