For length, weight, speed, area, time, pressure, volume, power, fuel, temperature, data, and currency. Automatically or manually update currencies with 160 options. Enable multitasking on iPad for simultaneous conversions.
by Yan Liong Tan★ 4.71,357 ratingsProductivityFreeData updated 2026-09-11
Helps estimate materials for various shapes. Users input dimensions to calculate volume and quantity. Features include slab, column, and post calculations. Saves results for future reference.
Convert between pounds, kilograms, grams, and ounces. Input and select units for conversion. Share results via copy or email. Supports imperial and metric systems.
Monitor earthquakes with real-time updates and GPS compass maps. Display professional data including altitude, orientation, air pressure, and coordinates. View environmental metrics like humidity and temperature.
1. Convert units, currencies, and timezones instantly by typing a number and a few letters. Use a dedicated numpad to switch keyboards. Learn conversion patterns over time. Fetch current currency rates and display approximate values when needed.
Convert units across 180+ categories including angles, areas, cooking units, weight, clothing, and shoes. Convert 180+ currencies and digital currencies like Bitcoin and Doge. Enter values and get instant conversion results.
Calculate time and shutter speed for neutral density filters. Set countdown timers for exposures 10 seconds or longer. Supports up to 24-stops of ND filter. Compatible with iPhone, iPad, and iPod touch.
Monitor and visualize data from pH, dissolved oxygen, CO2, cell density, conductivity, and ORP sensors. View real-time sensor values. Control up to 100 sensors simultaneously. Integrate with process control systems via Bluetooth adapter.
Calculate BMI using height and weight. Determine healthy weight range based on height. Choose height units from mm, cm, m, km, inches, feet. Select weight units from kg, lb. Set decimal places for precision.
Convert lengths between metric and imperial units. Switch between meters, centimeters, inches, and feet. Input values manually or via voice. Save frequently used conversions. Share results via copy or email.
Calculate minimum for gas based on rate and pressure loss. Use multiple equations including AGA, Panhandle A, and Weymouth. Automatically adjust for gas density with Ideal Gas Law and CNGA compressibility factor. Input parameters and view results.
Calculate floor area with customizable input and output units. Choose decimal precision. Add or remove rooms using "+" or swipe. Convert measurements between metric and imperial systems.