Machinist's Calculator

Machinist's Calculator


(4 stars)


Download for Android Like

1,000 - 5,000 downloads

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Quickly solve trades math problems with this convenient App!

Right Angle calculations-Quickly calculate the dimensions and area of a right angle triangle.

Oblique Triangle calculations-Quickly calculate the dimensions and area of an oblique triangle.

Speeds and Feeds - Quickly calculate cutting Speeds and Feeds for drills, milling cutters, and lathe workpieces. Calculate between RPM and Feet-Per-Minute or Meters-Per-Minute, and between Feed-Per-Rev and Feed-Per-Minute. Drill Charts and Materials List are usable right in the function.

Counter Sinks & Drill Points-Calculate drill point and countersink depths. Drill Charts usable right in the function.

Bolt Circles - Calculate X-Y coordinates for equally spaced bolts. You can make the center of the circle any coordinate you need, and place the first hole at any angle.

Sine Bar - Quickly and accurately calculate precision block stack or angle for use with sine bars or sine plates.

Drill Charts-Quickly lookup Decimal conversions of Inch based Number & Letter Drills, and Tapping Charts for UN & ISO Metric, Cutting, and Coldform (roll) taps. Use the Drill Charts right in the Speeds & Feeds and C'Sink & Drill Point Functions.

Materials List--Material list containing starting cutting speeds for over 200 materials. Use the Materials List right in the Speeds & Feeds Function.

All calculations can switch between imperial and metric with the touch of a button.

Uses an attractive graphical diagram background for easy answer references! No more text boxes and labels! Automatically makes the calculation once enough information is entered!

Designed for Smartphones and Tablets!

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Recently changed in this version


Bug Fixes

New Feature
- Each function calculator will now remember the type of measurement used last time, even if the app was closed.

Comments and ratings for Machinist's Calculator
  • (58 stars)

    by Joseph Jones on 22/02/2014

    Big time saver and accurate.

  • (58 stars)

    by John Braidwood on 08/02/2014


  • (58 stars)

    by finan Sean on 10/01/2014

    Love it

  • (58 stars)

    by Sir William on 14/12/2013

    It's always off on angles. Can't figure out how to make it match what the calculator and my trig book says to be true.

  • (58 stars)

    by Mario DeAnd on 08/10/2013

    Great app!

  • (58 stars)

    by Len Dalpiaz on 01/10/2013

    Love it.!

  • (58 stars)

    by John Downing on 15/09/2013

    The new app looks nice but doesn't always respond properly every time I tap the entry buttons. I also miss being able to use app in portrait mode. Galaxy s3

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