Tag Archives: formula

Milling Speeds and Feeds Pro

Available in the App Store

Milling Speeds and Feeds Pro is built for machinists, CNC operators, and shop teams who need dependable cutting numbers quickly. It gives practical starting points for RPM, feed rate, and surface speed, then lets you save, reload, and refine setups for real work at the machine.

Whether you are dialing in a one-off part, repeating a proven setup, or training newer operators, this app helps reduce guesswork and keeps your process consistent across jobs.

Why shops use it
– Fast speeds and feeds calculator for daily milling setup
– RPM calculator based on SFM and tool diameter
– Feed rate calculation using proper tool model logic
– Surface speed (SFM) output for quick verification
– Built-in support for both end mills and drills
– End mill feed uses chip load and flute count
– Drill feed uses IPR (inches per revolution)
– Material-aware defaults to speed up first-pass programming
– Saves reusable jobs for repeat work and family-of-parts workflows
– Reloads saved jobs directly into inputs for recalculation and edits
– Clear action feedback with toast confirmations
– One-tap share for setup communication between operators and programmers

Material profiles included
– Aluminum
– Mild Steel
– Stainless Steel
– Brass
– Titanium

Practical controls for real setup work
– SFM mode selector: Low, Standard, Aggressive
– Flute count input for end mills (with explicit default)
– Diameter formatting for clean, professional input values
– Randomize option for realistic in-range sample setups
– Refresh and New actions to reset quickly between jobs

Built for speed on the shop floor
– Clean SwiftUI interface with quick navigation
– Designed for fast entry with minimal taps
– Useful for CNC mills, manual milling workflows, and prototype work
– Ideal for setup sheets, first-article runs, and process handoff

Great fit for these searches
– speeds and feeds calculator
– milling calculator
– cnc feed and speed calculator
– rpm and feed calculator
– sfm calculator
– end mill calculator
– drill feed rate calculator
– machinist calculator
– cnc machining app
– metal cutting calculator

Important note
– Results are practical starting points. Always verify against tooling manufacturer recommendations, machine rigidity, workholding, coolant strategy, and specific cut conditions.

Available in the App Store

This app is available for a discount to Apple-approved Education institutions through the Apple’s Volume Purchase Program.

Radius Calc with 83 in 1 Calculator, Solver, & Converter

Available in the App Store

The Radius Calc app is 83 calculators, solvers, and converters in just one app. Also, this app features an extensive help file with graphics, equations and formulas.

Radius Calculator

* Using Span and Rise calculate Central Angle, Radius, Arc Length, and Circumference in degrees, yards, feet, and inches

Angle Converters

1. Angle Calculator
2. Degrees to Radians

AND a simple expression calculator

Area Unit Converters

3. Inch & Shorter
4. Feet & Yards & Meters

Distance Unit Converters

5. Miles & Kilometers
6. Inches & Centi- & Millimeters
7. Feet & Yards & Meters

Financial Solvers

8. Bill discounting
9. Discounted cash flow (DCF)
10. Effective rate discount
11. Future Value – Investment
12. Future Value of annuity (investment) growing
13. Interest – Investment
14. Interest on consumer goods
15. Leasing interest rate
16. Leasing prepayment
17. Loan Interest
18. Loan prepayment
19. Loan prepayment with extra monthly payment
20. Monthly investments
21. Monthly leasing payments
22. Monthly payments
23. Mortgage monthly payments
24. Number of payments
25. Period – Investment
26. Present Value – Investment
27. Present Value of annuity (investment) growing
28. Price discount
29. Simple discount

Fraction Calculators

30. Fibonacci Sequence
31. Fractions (Add)
32. Fractions (Compare)
33. Fractions (Divide)
34. Fractions (Multiply)
35. Fractions (Reduce)
36. Fractions (Subtract)
37. Greatest Common Factor
38. Least Common Multiple

Geometry Calculators

39. Circle Area
40. Circle Circumference
41. Cone Surface Area
42. Cone Volume
43. Cube Surface Area
44. Cube Volume
45. Cylinder Surface Area
46. Cylinder Volume
47. Ellipse Area
48. Inscribed Angle
49. Parallelogram Area
50. Parallelogram Perimeter
51. Pyramid Square Surface Area
52. Pyramid Square Volume
53. Pyramid Triangle Surface Area
54. Pyramid Triangle Volume
55. Rectangle Area
56. Rectangle Perimeter
57. Rectangular Prism Surface Area
58. Rectangular Prism Volume
59. Regular Polygon Angle
60. Regular Polygon Area
61. Regular Polygon Perimeter
62. Sphere Surface Area
63. Sphere Volume
64. Square Area
65. Square Perimeter
66. Trapezoid Area
67. Triangle Area

Matrix Solvers

68. Matrix Determinant 2×2
69. Matrix Inverse 2×2
70. Matrix Trace 2×2
71. Matrix Determinant 3×3
72. Matrix Inverse 3×3
73. Matrix Trace 3×3
74. Matrix Determinant 4×4
75. Matrix Inverse 4×4
76. Matrix Trace 4×4

Statistics Calculators

77. Combinations
78. Factorial
79. Random Number (Continuous)
80. Random Number (Discrete)

Weather Converter

81. Temperature Converter

New Calculators!

82. Simple expression calculator
83. Radius Calculator

This app features:

• Send your calculations or conversions by email
• Universal App (iPhone, iPod Touch, and iPad)
• iOS 5 & 6 are supported
• iPhone 5’s 4 inch screen and the original 3.5 inch screen are supported
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs

No network connectivity required.

Available in the App Store

This app is available for a discount to Apple-approved Education institutions through the Apple’s Volume Purchase Program.