Convert length and time relativistically.
The app converts between length and time using geometrized units where the speed of light is unity. It allows users to think about the world differently by converting units like inches to seconds or miles to years.
Showing 141–160 of 1,000 ranked alternatives.
Infoguide Pty Ltd
Calculate , deck, and concrete dimensions
Calculate pitches, angles, and rise/run ratios. Estimate decking, stair, stud wall, and concrete quantities and costs. Switch between US and metric units. Input measurements for precise material estimates. Export results for project planning.
VisTech.Projects LLC
Convert units between categories seamlessly
Convert units across categories like length, area, and temperature. Perform simultaneous conversions and customize preferences. Copy converted values to the clipboard for quick use.
DollarUp, LLC
Track items, sync across devices, share
Create and manage lists with access for group tasks. Add, edit, and check off items. Set reminders and sync across devices. Collaborate in real-time with others. Organize tasks into categories and view progress.
Gabe Montague
Calculate , add, subtract, convert
Calculate values with hours, minutes, and seconds. Perform math operations including multiplication and division. Convert between distances and standard numbers. Track splits and paces for -based activities.
Bret Hardman
Calculate measurements in feet, inches, and meters
Calculate measurements using feet, inches, yards, meters, and regular numbers simultaneously. Input fractions by selecting a numerator and denominator. Convert between units and perform calculations for construction tasks.
Public Broadcasting Service
Navigate spacetime and collect cosmic objects
Explore interactive physics simulations to learn about stellar evolution. Navigate cosmic environments to manipulate stars and avoid hazards. Complete challenges to form holes. Access a two-hour documentary on holes hosted by an astrophysicist.
Gero Mazza
Calculate, convert, and track expenses
Perform basic and advanced calculations with large, illuminated buttons. Use the scientific for 30 functions. Convert units, calculate loans, and determine tips. Includes standard, scientific, unit converter, loan, and tip calculators.
Wuhan Ananta Technology Co., Ltd.
Calculate, convert, solve, track
Perform calculations using a basic, scientific, currency, and units calculator. View calculation history, convert numbers to speech, and synchronize results across all calculator modes.
iReka Soft
Count down to events in style
Countdown timers for upcoming events like vacations, birthdays, and concerts. Set custom time units including years, months, and seconds. Use personal photos as backgrounds. Receive notifications for events.
More Voltage
Enter numbers with a dedicated
Provides a keypad for entering digits in apps that lack a . Users can input phone numbers, credit card details, and other numeric information efficiently. The functions as a standalone input method for numeric data entry.
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