Feet & Inch Calc - Inchmark
Exact fractions, tape answers
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Add 12' 6-1/2" + 8' 9-3/4" as you measured it. Answers snap to 1/16" on a tape and show the rounding error. Area, volume, metric and a calculation tape. Works offline.
Inchmark is a construction calculator that works in feet, inches and fractions, just the way you measure. Built for carpenters, finish work, cabinet makers and DIY, it takes the decimal conversions and miscuts out of the job.
[Type it like you read it]
Press 12, FEET, 6, INCH, 1 / 2 and you get 12' 6-1/2". Feet keys are blue, inches green, fractions orange. Add, subtract, multiply and divide, including finding the center with ÷2.
[Read the answer off the tape]
Answers are rounded to 1/16" and marked in red on a tape measure. When an answer is rounded you see the error, like −1/48", so you know exactly how close it is. Choose nearest, round up or round down.
[Area and volume]
Feet times feet gives square feet; multiply by a thickness for cubic feet and cubic yards. Metric values are shown underneath.
[Switch units]
Tap the answer to see it in inches and fractions, decimal feet or inches, yards, meters, centimeters or millimeters.
[Calculation tape]
Every answer you get with = is saved to the tape. Tap one to use it in your next calculation. Memory keys (M+ M− MR MC) are included.
[Made for the jobsite]
Big keys, key vibration and a left-handed layout. Works offline with no account. No ads on the calculator screen.
[Premium, buy once]
Seven jobsite tools (stairs, rafters, right angle and pitch, even spacing, area and concrete, board feet, circles and arcs), 1/32" and 1/64" precision, the full tape with notes and CSV export, night and high-contrast themes, and no ads. Not a subscription: buy it once and it's yours.
Stair checks use common IRC guidelines. Always check your local building code.
Terms of Use (EULA): https://show-ec09e.web.app/terms.html
Privacy Policy: https://show-ec09e.web.app/privacy.html
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The developer, kota tada, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Financial Info
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- User Content
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- kota tada
- Size
- 86.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 72 more
- English, Afrikaans, Albanian, Amharic, Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bengali, Bulgarian, Burmese, Cambodian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Filipino, Finnish, French, Galician, Georgian, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kannada, Kazakh, Korean, Kyrgyz, Laotian, Latvian, Lithuanian, Macedonian, Malay, Malayalam, Marathi, Mongolian, Nepali, Norwegian Bokmål, Oriya, Persian, Polish, Portuguese, Punjabi, Rhaeto-Romance, Romanian, Russian, Serbian, Simplified Chinese, Singhalese, Slovak, Slovenian, Spanish, Swahili, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese, Zulu
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Inchmark Premium $9.99
- Copyright
- © 2026 kota tada
