Bend Calculator - Sheet Metal
Bend allowance & flat pattern
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Calculate bend allowance, bend deduction, outside setback, flat length, K-factor, and multi-bend parts with explicit shop-floor conventions.
Sheet Metal Bend Calculator is a focused utility for press-brake and sheet-metal layout work.
Calculate the values fabricators use every day:
- Bend Allowance (BA)
- Bend Deduction (BD)
- Outside Setback (OSSB)
- Flat Length
- K-Factor
- Single-bend and multi-bend parts
The app makes angle and dimension conventions explicit. Choose bend angle or included angle, then calculate flat length from tangent-straight dimensions or outside mold-line dimensions without mixing assumptions.
Built for practical shop calculations:
- Decimal inch and metric units
- Editable K-factor
- K-factor solver from measured bend data
- Material/tooling presets
- Saved calculation history
- Text share for quick checks
- Pro CSV/PDF exports for shop summaries
- iCloud sync with local fallback
Free includes ads and practical limits. Pro removes ads and the daily calculation limit, and unlocks expanded history, presets, multi-bend parts, and export workflows.
Pro is available two ways: a one-time purchase that is yours for good, or a weekly subscription that renews until you cancel. Both unlock exactly the same features. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed or cancelled in your App Store account settings.
Important: bend results depend on material, tooling, grain direction, bend method, and shop practice. Use this app as an engineering aid and verify results against your own shop data before production.
Terms of Use: https://signet.co.jp/sheet-metal-bend-calculator/terms
Privacy Policy: https://signet.co.jp/sheet-metal-bend-calculator/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Signet LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Signet LLC
- Size
- 25.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Signet LLC