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.
- Ideal shearing estimate; tool geometry, stripping force, clearance and machine margins are excluded.
Example Calculation
- Cut perimeter: 100 mm
- Sheet thickness: 2 mm
- Material shear strength: 300 MPa
100 mm cut perimeter through 2 mm sheet at 300 MPa gives ideal force 60 kN.
Frequently asked questions
How do I use this calculator?
Enter cut perimeter, sheet thickness, material shear strength. The result updates automatically. Use Reset to restore the example values.
What method does it use?
F=perimeter × thickness × shear strength; 1 MPa=1 N/mm².. Ideal shearing estimate; tool geometry, stripping force, clearance and machine margins are excluded.
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.