Pitch Diameter
Blank Diameter

Instructions: Choose your thread size from the drop-down menu or the slider. Once thread size is selected, please choose the desired pitch and click "Calculate Your Diameters" to read your pitch and blank diameters in the box below.
Please Note: The pitch and blank diameter calculator is intended for general information purposes only. We make no representations or warranties of any kind as to the accuracy, completeness nor suitability of the calculator, in any specific application.

  • Metric

    Step 1: Choose your Thread Size

    • Select value
    • M1
    • M1.1
    • M1.2
    • M1.4
    • M1.6
    • M1.8
    • M2
    • M2.2
    • M2.5
    • M3
    • M3.5
    • M4
    • M4.5
    • M5
    • M5.5
    • M6
    • M7
    • M8
    • M9
    • M10
    • M11
    • M12
    • M14
    • M15
    • M16
    • M17
    • M18
    • M20
    • M22
    • M24
    • M25
    • M27
    • M28
    • M30
    • M32
    • M33
    • M35
    • M36
    • M39
    • M40
    • M42
    • M45
    • M48
    • M50
    • M52
    • M55
    • M56

    Step 2: Choose Your Pitch

    ??
    Results:

    Pitch Diameter

    ? Maximum
    ? Minimum

    Recommended Blank Diameter

    ?
  • Standard

    Step 1: Choose your Thread Size

    • Select value
    • #2
    • #3
    • #4
    • #5
    • #6
    • #8
    • #10
    • #12
    • 1⁄4
    • 5⁄16
    • 3⁄8
    • 7⁄16
    • 1⁄2
    • 9⁄16
    • 5⁄8
    • 11⁄16
    • 3⁄4
    • 13⁄16
    • 7⁄8
    • 15⁄16
    • 1
    • 1 1⁄16
    • 1 1⁄8
    • 1 3⁄16
    • 1 1⁄4
    • 1 5⁄16
    • 1 3⁄8
    • 1 7⁄16
    • 1 1⁄2
    • 1 9⁄16
    • 1 5⁄8
    • 1 11⁄16
    • 1 3⁄4
    • 1 13⁄16
    • 1 7⁄8
    • 1 15⁄16
    • 2
    • 2 1⁄8
    • 2 1⁄4

    Step 2: Choose Your Pitch

    ??
    Results:

    Pitch Diameter

    ? Maximum
    ? Minimum

    Recommended Blank Diameter

    ?
Calculate Your Diameters