Bend Calculator - Sheet Metal

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.

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