FREE ON THE APP STORE

CNC calculations,
fast and precise

Feed rate, cutting speed, material removal rate, thread dimensions and more. Everything a CNC machinist needs, right in your pocket.

Download on the App Store

Built for machinists

Quick, reliable calculations to streamline your daily CNC operations.

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Speeds & Feeds

Calculate RPM, cutting speed, and feed rate instantly for any material and tool combination.

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Thread Dimensions

Look up metric and imperial thread specs including major diameter, pitch, and tap drill sizes.

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Material Removal Rate

Estimate MRR for milling, turning, and drilling to optimize cycle times and tool life.

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Metric & Imperial

Switch freely between metric and imperial units. All calculators adapt automatically.

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Coolant Pressure

Convert and calculate coolant pressure for through-spindle and flood coolant setups.

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Ad-Free Option

One-time purchase to remove all ads and enjoy a distraction-free experience.

Get in touch

Questions, feedback, or feature requests? We'd love to hear from you.

support.cncflow@gmail.com