PrefixCalc
Metric‑prefix calculator
Free · Designed for iPad. Not verified for macOS.
This calculator supports Metric‑prefix such as kilo and giga.
The calculator supports quetta (10^30) and quecto (10^-30), which were added in 2022.
Main Functions
・Support for arithmetic operations (+ - ×÷)
・Results converted to Japanese numerals for display
・Delete one character at a time with the "DEL" button
Press and hold to delete all
・Press and hold to copy calculation formulas and results
English (Short scale, Long scale) and
Chinese numerals can also be selected.
・Calculations that include prefixes such as 2M+1k, 2M×1μ, etc.
Note:
・Very large numbers that exceed 200 digits may be rounded off for display and calculation purposes.
Please note this when precision is required.
・Short scale and Long scale are currently supported up to 10^198.
・Kanji notation is supported up to 10^72.
If it is greater than the number, it will be displayed in Arabic numerals.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, YONAGARE LAB, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- YONAGARE LAB
- Size
- 29.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 12.0 or later.
- iPhone
Requires iOS 12.0 or later. - iPad
Requires iPadOS 12.0 or later. - iPod touch
Requires iOS 12.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Yonagare