Converter

Name: Converter
Price: 4.99 USD
Rating: 5 (2 reviews)
Author: Nic Kolbe

Measurement Converter Pro

$4.99

2 Ratings
Age Rating

4+
Years
Category

Utilities
Developer

Nic Kolbe
Language

EN
English
Size

70.6
MB

Convert across 30 categories with 14,000+ combinations, up to 100.000-digit precision, educational insights, and currency rates updated via the IMF. Converter – The Ultimate Measurement & Conversion Tool Converter is your ultimate measurement and conversion tool, designed to educate and empower. With over 14,000 conversion possibilities across 30 categories, it’s the most complete and precise calculator you'll ever need — whether you're a student, scientist, engineer, traveler, or simply curious. Explore a wide range of categories: Acceleration, Angle, Area, Base, Body Height, Consumption, Currency (auto-updated via IMF), Data Storage, Data Transfer, Density, Electricity, Energy, Force, GPS, Illuminance, Length, Luminance, Mass, Permeability, Power, Pressure, Radioactivity, Temperature, Time, Time Zone, Torque, Velocity, Viscosity, Volume, Volume Flow Rate — and more. Key Features: • Over 14,000 conversion combinations • Precision up to 100.000 digits • Scientific, standard, and custom formats • Educational layout – all unit values visible in one glance • Clean, user-friendly interface • Easy export or copy/paste of high-precision results • Smart tooltips for every item • Currency updates powered by the International Monetary Fund Trusted sources: • BIPM – Bureau International des Poids et Mesures • NIST – National Institute of Standards and Technology • IMF – International Monetary Fund • IANA – Internet Assigned Numbers Authority • Wikipedia (for accessible context) Whether you're solving school problems or running lab simulations, Converter gives you clarity, confidence, and insight. It’s more than just a calculator — it’s a learning companion built for precision and discovery. Created with love and accuracy by an experienced developer passionate about making complex knowledge accessible to all. Designed not just to convert — but to teach, explain, and inspire clarity.

Ratings & Reviews

5.0

out of 5

2 Ratings

Great app
May 1
Former user #3.567
I just got this for my Mac because my old units converter was not compatible w/ Apple silicon. I have never found a converter with such a complete range of units categories. As a chemical engineer who not infrequently works in other areas, I really find the units library very useful. I only have one suggestion so far- The default font is quite small, but I found that I can easily resize the window and that increases the font size. Perfect! However, when I choose a different category of units, I have to resize the window again. The app appears to remember the size I select for a given unit, but I have to do that for each category separately. I’m guessing this setting might be linked to window size, so that would make sense, since some categories have many more options than others. However, it would be really nice if the settings permitted users to simply select a default font size that would automatically work for all categories. Thanks for a great app!

Developer Response
Thank you so much for the review, glad you like it! Great idea with the font size, thanks - will include it in the next version! All the best!
Great app
May 1
Former user #3.567

I just got this for my Mac because my old units converter was not compatible w/ Apple silicon. I have never found a converter with such a complete range of units categories. As a chemical engineer who not infrequently works in other areas, I really find the units library very useful. I only have one suggestion so far- The default font is quite small, but I found that I can easily resize the window and that increases the font size. Perfect! However, when I choose a different category of units, I have to resize the window again. The app appears to remember the size I select for a given unit, but I have to do that for each category separately. I’m guessing this setting might be linked to window size, so that would make sense, since some categories have many more options than others. However, it would be really nice if the settings permitted users to simply select a default font size that would automatically work for all categories. Thanks for a great app!
Developer Response May 3
Thank you so much for the review, glad you like it! Great idea with the font size, thanks - will include it in the next version! All the best!
Most Intuitive Conversion App
12/27/2022
Motorpsychology
I used it for years on a previous laptop and kept it. Simple drop down menu for type of measurement.Select what you want converted, enter the value, hit Calculate and it simultaneously displays conversions for every possible or obscure unit of measure. Only one I've found that includes Force and Torque choices.The standard font is small but you can corner drag to enlarge the typeface. It would be nice if the app would remember the desired size instead of reverting back to its compact form.

Developer Response
Thank you so much 🙏🏻🤩 Your request is now included!
Most Intuitive Conversion App
12/27/2022
Motorpsychology

I used it for years on a previous laptop and kept it. Simple drop down menu for type of measurement.Select what you want converted, enter the value, hit Calculate and it simultaneously displays conversions for every possible or obscure unit of measure. Only one I've found that includes Force and Torque choices.The standard font is small but you can corner drag to enlarge the typeface. It would be nice if the app would remember the desired size instead of reverting back to its compact form.
Developer Response 06/20/2023
Thank you so much 🙏🏻🤩 Your request is now included!
The BEST Unit Conversion App!
01/16/2025
Bullwinkle888
I have been using Nic Kolbe‘s Converter app on my Mac for the last decade. After having tried a dozen or more unit conversion apps, this is by far the easiest and most intuitive to use. I’m ecstatic that this is now available in iOS.

Developer Response
Thank you so much for using the app and the awesome review!
The BEST Unit Conversion App!
01/16/2025
Bullwinkle888

I have been using Nic Kolbe‘s Converter app on my Mac for the last decade. After having tried a dozen or more unit conversion apps, this is by far the easiest and most intuitive to use. I’m ecstatic that this is now available in iOS.
Developer Response 01/18/2025
Thank you so much for using the app and the awesome review!
Display TOO small
12/19/2019
Iquittoo
The display is too small except for the GPS unit. I convert from Millimeter to Inches and back frequently. The text on the display appears to be a 10 point type. The width of the display in the Length calculator is 2 3/4” by 6 1/2” high. Being a senior citizen the text is hard to read requiring me to lean forward and look through my bi-focal lens. I have a 27” iMac, guess the app was designed to be compatible with the 13” Mac Air.The app is inexpensive and works well and fast.

Developer Response
The app is now resizeable! Thank you for the feedback, please adjust your rating.
Display TOO small
12/19/2019
Iquittoo

The display is too small except for the GPS unit. I convert from Millimeter to Inches and back frequently. The text on the display appears to be a 10 point type. The width of the display in the Length calculator is 2 3/4” by 6 1/2” high. Being a senior citizen the text is hard to read requiring me to lean forward and look through my bi-focal lens. I have a 27” iMac, guess the app was designed to be compatible with the 13” Mac Air.The app is inexpensive and works well and fast.
Developer Response 10/25/2022
The app is now resizeable! Thank you for the feedback, please adjust your rating.

Converter has received one of its most extensive updates yet, with major improvements to precision, educational content, usability, and device support. • Every conversion formula has been carefully reviewed, updated, and tested • Planck values have been added throughout the relevant scientific categories • All unit information texts have been rewritten and greatly expanded Each unit now provides clearer and more useful information, including its symbol, measured quantity, unit system, SI relationship, physical meaning, typical uses, historical background, dimensions, and relevant scientific connections. • Completely new layouts have been created and optimised separately for iPhone and iPad • Numerous interface refinements, corrections, and stability improvements have been added This major update was created through close human–AI collaboration, combining careful human testing, scientific research, detailed formula verification, and precision-focused analysis. Converter now offers its most accurate, complete, educational, and refined experience yet—designed not only to convert values, but also to explain, teach, and inspire discovery.

Version 5.0.4 Jul 23

Data Not Collected

The developer does not collect any data from this app.

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Supported Features
- Dark Interface

Information

Seller: Nic Kolbe
Size: 70.6 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 12 or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 4+

4+

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