Apps Like e: Spacetime Converter for iPhone and iPad
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.
by Elliptics, Ltd.★ 5.01 ratingsEducationFreeData updated 2026-09-10
Calculate material needs for patios using seven estimators: concrete slab, pavers, paver base, polymeric sand, sand & gravel, area, and volume. Input dimensions in inches, feet, yards, centimeters, or meters.
Convert units for length, weight, volume, temperature,
Convert units for length, weight, width, volume, velocity, temperature, and pressure. Select the desired and perform conversions. Use tabs to switch between categories. Input values and receive converted results.
Convert inches to millimeters with a simple interface. Enter measurements and receive instant conversions. Supports both imperial and metric units. Save frequently used conversions for quick access.
Calculate , , or with simple input fields. Switch between units like mph, km/h, and m/s. Save calculation history for quick reference. Share results via email or messaging.
Calculates distances between map points and areas of non-overlapping polygons. Users can switch between metric and imperial units. Coordinates are displayed in decimal or degrees, minutes, and seconds.
Quilting calculators help convert units between yards and inches, meters and centimeters. Determine fabric needed for backing, batting, and borders. Calculate rectangular pieces from larger fabric.
Calculate antenna lengths for dipoles, inverted vee, and vertical antennas in feet/inches or metric. Input frequency and select antenna type to get starting length. View 1/8, 1/4, 1/2, 5/8, and full wave options.
Perform calculations with a standard featuring extra-large buttons and functions like delete, x², √, and %. Use a scientific with 30 advanced functions. Convert units, calculate loans, and determine tips.
The app transforms a device into a construction calculator for feet, inches, and fractions. It performs calculations and conversions for various measurement units, including a triangle function for rise, run, diagonal, and pitch.
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
Convert gases and units with convenience.
The app converts between gaseous and liquid states and calculates units for weight, area, length, and volume. Users can customize the display and locate Air Liquide offices worldwide.
Area, lengths, and angles on maps using an interactive crosshair. Trace outlines to create connected points, updating area and perimeter in real time. Adjust radius for scaling features. View dynamic length and angle as you move the crosshair.
Measure lengths in centimeters or inches by placing the iPhone beside an object and moving it while touching the screen. Use a long scroll ruler up to 120 cm or a stick ruler with two sliders for small items.
Calculate needed for flower beds, shrubbery, or other landscaped areas. Input dimensions in inches, feet, yards, centimeters, or meters. Output includes cubic yards, cubic feet, cubic meters, liters, and bag counts.
The app calculates baluster spacing measurements for flat and rake handrails. It provides outputs such as the number of balusters, space between centers, and measurements for marking baluster centers.
Calculate area, perimeter, and square-up using length, width, and height. Convert measurements between yards, feet, inches, fractions, and decimals. Perform unit conversions for math tasks.