# CNC Machinist Calculator — Speed Feed RPM Milling > Offline CNC machining calculator for speeds, feeds, tolerances, and G-code. (iPhone/iPad app by Vladislav Zhirnov.) - Source: https://appshunter.io/ios/app/cnc-machinist-calculator/id6605942020 (this page in markdown: same URL + `.md`) - Developer: [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 10 MB - Languages: Danish, Ukrainian, Russian, Croatian, Hungarian, Norwegian Bokmål, Hindi, Indonesian, Turkish, Hebrew and 22 more - Released: 2024-08-22 - Data updated: 2026-08-24 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/cnc-machinist-calculator/id6605942020/reviews.md ## What is CNC Machinist Calculator? Meet Milling • Drilling • Turning — the pocket‑sized industrial calculator trusted by CNC programmers, tool‑room veterans, and manufacturing engineers worldwide. In under a second, it turns scribbles on a setup sheet into exact spindle RPM, feed per tooth, horsepower draw, coolant flow, tolerances, and even G‑code patterns — no spreadsheets, no rules of thumb, no signal required. 16 production‑ready tools (offline) • Milling Speed & Feed • Milling Horsepower • Milling Step‑over Distance • Drilling Speed & Feed • Drilling Horsepower • Drill Size / Tap Drill Look‑up • Tap Size (pitch & class) • Turning Speed & Feed • Turning Horsepower • Turning Surface Roughness • Thread Milling (helical path, arc length, chip thinning) • Tool‑Life Predictor • Coolant Flow & Nozzle Velocity • NEW: Tolerance & Fit Calculator (ISO 286 / ANSI B4.1) • NEW: G‑Code Reference Library & Quick Generators • NEW: Chip Load & Tool Deflection Calculator What’s new and why it matters • Tolerance & Fit Calculator (ISO 286 / ANSI B4.1) • Pick standard fits (e.g. H7/g6) and get upper/lower limits, deviations, and fit type (clearance/transition/interference) instantly. • Visual tolerance zones help with assembly planning and inspection. • Inch/metric aware, with save/share for traveler notes. • G‑Code Reference & Quick Generators • Clean, searchable G‑ and M‑code library with categories, formats, and examples you can copy to clipboard. • Quick Generators: Bolt circle, rectangular and linear patterns, plus arc‑center from 3 points — perfect for one‑off ops and quick CAM notes. • Chip Load & Tool Deflection Calculator • Computes chip load per tooth, cutting forces, bending stress, overhang ratio, and tool deflection (µm & thou). • Chatter risk score with visual indicators and actionable recommendations. • Material‑aware defaults for tool and workpiece; supports carbide/HSS and common alloys. Why machinists keep it on their home screen • Built for the shop floor — big type, dark mode, glove‑friendly UI; works 100% offline. • Verified formulas & data — derived from ISO, ASM Handbook, and Machinery’s Handbook; peer‑reviewed by veteran machinists. • Inch/metric in one tap — instant unit swap, plus surface speed, chip‑load, and MRR summaries. • Smart defaults — choose tool material and workpiece alloy to pre‑fill recommended SFM and fz. • Save & share — bookmark setups, copy results to CAM notes, or AirDrop to the operator. • Light on battery, heavy on accuracy — single‑screen calculators to keep you cutting, not tapping. Built to boost OEE and quality • Hit first‑article faster with fewer test cuts. • Reduce scrap and rework through predictable feeds, speeds, and fits. • Improve tool life with correct chip load and deflection control. • Communicate clearly — standardized results you can paste into setup sheets. Always improving We ship practical, production‑ready tools that machinists actually use. If it doesn’t help you ship parts, it doesn’t ship in the app. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Milling Speed & Feed Calculator - Drilling Speed & Feed Calculator - Tolerance & Fit Calculator - G-Code Reference & Generators - Chip Load & Tool Deflection Calculator - Offline functionality - Inch/Metric unit switching ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Full version / year | $2.99 | per year | | Remove ADS monthly | $0.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove ADS | $4.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/cnc-machinist-calculator/id6605942020/reviews.md ### 3/5 — Доработайте *2026-04-16* Нету Русского языка и сделайте пожалуйста на материал ДЕРЕВО. У меня фрезерный станок чпу по дереву и мне бы очень помогло это. ### 5/5 — Đánh giá *2025-12-04* Thật tiện ích👍 ## Frequently asked questions about CNC Machinist Calculator ### What is CNC Machinist Calculator? CNC Machinist Calculator is an offline industrial calculator designed for CNC programmers and machinists. It provides instant calculations for speeds, feeds, horsepower, coolant flow, tolerances, and G-code patterns, helping to improve efficiency and accuracy on the shop floor. ### Does CNC Machinist Calculator have ads? No, CNC Machinist Calculator is ad-free. The app offers optional subscription plans for 'Remove ADS monthly' at $0.99/P1M and 'Full version / year' at $2.99/P1Y, indicating that the core experience is ad-supported and premium features are available through purchase. ### What are the subscription options for CNC Machinist Calculator? CNC Machinist Calculator offers two subscription plans: 'Remove ADS monthly' for $0.99/P1M and 'Full version / year' for $2.99/P1Y. These plans provide access to additional features and an ad-free experience. ### Is CNC Machinist Calculator available on all devices? CNC Machinist Calculator is available for iPhone and iPad, as indicated by its supported devices. The app is designed to work on iOS platforms. ### How often is CNC Machinist Calculator updated? CNC Machinist Calculator was last updated on 2025-11-05, with its latest version being 8. This suggests regular updates to introduce new features and improvements. ### What is the age rating for CNC Machinist Calculator? CNC Machinist Calculator has an age rating of 4+, making it suitable for a wide range of users. This rating indicates that the app's content is generally appropriate for children. ### What kind of calculations can CNC Machinist Calculator perform? CNC Machinist Calculator can perform 16 production-ready calculations, including Milling Speed & Feed, Drilling Speed & Feed, Tolerance & Fit, G-Code generation, Chip Load & Tool Deflection, and more. It covers a comprehensive range of needs for machinists. ### Can CNC Machinist Calculator be used without an internet connection? Yes, CNC Machinist Calculator works 100% offline. This feature is crucial for use on the shop floor where internet signal may be unreliable. ## Version history (last 5 releases) ### 8 — 2025-11-05 • New: Tolerance & Fit Calculator (ISO 286 / ANSI B4.1) with visual zones and fit classification • New: G‑Code Reference Library with searchable G/M codes and copyable examples • New: Quick Generators — bolt circle, rectangular and linear patterns, arc center from 3 points • New: Chip Load & Tool Deflection Calculator — forces, deflection (µm & thou), overhang ratio, chatter risk with recommendations • Plus UI refinements, faster unit switching, and minor fixes ### 7 — 2025-07-07 New calculators added: - Thread Milling - Tool Life Predictor - Coolant Flow Calculator ### 6 — 2025-04-03 Some UI bugs fixed ### 5 — 2024-09-28 Some UII bugs fixed ### 4 — 2024-09-22 Another fix for UI ## Apps similar to CNC Machinist Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [数控车床编程-车工计算铣工加工中心](https://appshunter.io/ios/app/id6467717383) | — | Free | Utilities | | [Cutting Tool App](https://appshunter.io/ios/app/cutting-tool-app/id567696185) | — | Free | Utilities | | [iNC-Mill](https://appshunter.io/ios/app/inc-mill/id6755829129) | 5.0 (1) | Free | Utilities | | [GCode Scanner & STL Viewer](https://appshunter.io/ios/app/gcode-scanner-and-stl-viewer/id6747010022) | 5.0 (2) | Free | Utilities | | [Machining Calculator](https://appshunter.io/ios/app/machining-calculator/id389011280) | 4.3 (4) | Free | Utilities | | [i-Machinist](https://appshunter.io/ios/app/i-machinist/id1456473668) | 2.6 (9) | Free | Utilities | ## More apps by Vladislav Zhirnov - [Facefitness - face exercise](https://appshunter.io/ios/app/facefitness-face-exercise/id1476188216) - [Neon Bleep Test PRO](https://appshunter.io/ios/app/neon-bleep-test-pro/id1487695486) - [Ideas fast log](https://appshunter.io/ios/app/ideas-fast-log/id1491519557) - [Concentrate and guess color](https://appshunter.io/ios/app/concentrate-and-guess-color/id1491661397) - [Postage stamps: all countries](https://appshunter.io/ios/app/postage-stamps-all-countries/id1497958107) - [Road signs: all countries](https://appshunter.io/ios/app/road-signs-all-countries/id1500810663) All apps by Vladislav Zhirnov: https://appshunter.io/developer/1476188065 ## Related topics [cnc](https://appshunter.io/ios/topics/cnc) · [cnc milling](https://appshunter.io/ios/topics/cnc-milling) · [cnc lathe calculator](https://appshunter.io/ios/topics/cnc-lathe-calculator) · [cnc lathe simulator](https://appshunter.io/ios/topics/cnc-lathe-simulator) · [machinist journeyman](https://appshunter.io/ios/topics/machinist-journeyman) · [cnc machinist calculator pro](https://appshunter.io/ios/topics/cnc-machinist-calculator-pro) · [cnc machinist calculator](https://appshunter.io/ios/topics/cnc-machinist-calculator) · [cnc machinist calculator ultra](https://appshunter.io/ios/topics/cnc-machinist-calculator-ultra) · [lathe rpm calculator](https://appshunter.io/ios/topics/lathe-rpm-calculator) · [cnc machinist calculator app](https://appshunter.io/ios/topics/cnc-machinist-calculator-app) · [machinist pocket pal](https://appshunter.io/ios/topics/machinist-pocket-pal) · [cnc lathe simulator lite](https://appshunter.io/ios/topics/cnc-lathe-simulator-lite) · [machinist calculator](https://appshunter.io/ios/topics/machinist-calculator) · [cnc code](https://appshunter.io/ios/topics/cnc-code) · [machinist tool](https://appshunter.io/ios/topics/machinist-tool) · [cnc machinist](https://appshunter.io/ios/topics/cnc-machinist) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*