Precision Locksmithing, Simplified.

Stop doing math at the bench and putting down your tools to check paper charts. Locksmith Calculator is the ultimate companion for professional locksmiths, helping you convert measurements into accurate key codes and calculate complex pin stacks instantly.

3 Ways to Work Faster

1. Key Calculator (Decoding)
Go from Cut to Code instantly. Measure key cuts using your calipers, and the app returns the correct cut depth (e.g., measuring 6.60mm returns a #2 cut). It automatically calculates the bottom and master pins required for that key.

2. Pin Calculator (Reverse Engineering)
Have a pile of pins but no key? Measure the loose pins from a lock chamber to reverse-engineer the bitting. The app intelligently assumes the first pin is the Bottom Pin and subsequent pins are Master Pins, generating all possible valid keys (User and Master) that will operate that stack.

3. Bluetooth Caliper Integration
This is the game changer. Connect your Bluetooth Digital Calipers (in Keyboard mode) to the app. As you measure a key or pin, the data is input directly into the app—no typing required.

Key Features

• Visual Feedback: A dynamic display builds the key visually as you enter data.
• Direct Entry: Already know the cuts? Type the code (e.g., "23143") for an instant pin chart.
• Metric & Imperial: Toggle between MM and Inch globally with a single tap.
• Undo Function: Made a mistake while measuring pins? Remove the last entry without restarting the whole cylinder.
• Share & Export: Copy decoded codes and pin charts to your clipboard or email them directly to your office.
• Database Updates: The app checks online for the latest key blank and depth data, ensuring you are always up to date without needing to reinstall.

Manufacturer Support:
Includes data for a wide range of manufacturers and keyways (e.g., Lockwood, Silca, and more).

Designed by a Locksmith, for Locksmiths. Stop guessing and start originating with precision.