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Sheet Metal Bend Allowance Calculator
Calculate bend allowance for sheet metal.
wrench Free Online Tool
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Bend allowance
Compare Your Options And Get Clear Answers
Calculate bend allowance for sheet metal.
Sheet Metal Bend Allowance Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: BA = angle x (R + K T).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Sheet Quick Guide
Typical values for reference.
| Angle | Radius | Thickness | BA |
|---|---|---|---|
| 90 | 1 | 1 | 2.09 mm |
| 90 | 2 | 1.5 | 3.92 mm |
| 45 | 3 | 2 | 2.98 mm |
| 120 | 2 | 3 | 6.26 mm |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Sheet Metal Bend Calculator FAQ
Answers to common questions about this calculator.
Allowance.
It gives a quick estimate of sheet metal bend allowance from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.