One16 - Fraction Calculator now on the app store

Woodworking is fun. Math isn't.

Making the most of our precious time in the shop is critical. One16 can help. One16 was designed to respect your time, reduce errors, and make mundane math operations less painful. Download on the App Store

Introducing Actions.

Automate common calculations into fast actions. One of our favorites is calculating board feet. We ship One16 with a few to get you started. But creating your own is where the power of Actions shines.

Board Feet Calculator

Answers at a glance.

The next time saver are widgets. Designed with glanceability at their core. They give you quick references to your critical measurements without unlocking your phone or opening the app.

Widgets

Ready. Set. Round.

Rounding is a common task. One16 makes it easy to round to the nearest 1/16th, 1/8th, 1/4th, 1/2, or whole inch. We also support rounding to the nearest 1/32nd and 1/64th for those who need it.

Rounding to the nearest 1/16th, 1/8th, 1/4th, 1/2, or whole inch. We also support rounding to the nearest 1/32nd and 1/64th for those who need it.

Equation Builder.

We reference the same value multiple times. But not for related steps. Equation Builder saves you time by quickly reusing previous values. Double tap a previous value to copy it to your active term.

Private By Default.

Privacy is at the core of all our products. One16 doesn't track any data about you or your usage. If you do find a bug, please reach out to us! We will do our best to get it fixed in a timely manner. We love chatting with our users!

...and more

  • Denominator Keyboard
  • Decimal to Fraction conversion
  • Simplify fractions
  • Add, Subtract, Multiply, Divide fractions and decimals
  • Left Handed Keypad
  • Privacy Focused

One16 is built by a weekend woodworker with a family and full-time job. This is who this app is designed for. Have a feature suggestion? Let us know!

Download on the App Store