Calculate date differences between two dates. Determine end dates based on period and start date. Adjust inclusivity settings for both days or exclude the first day.
by Huaping Ye★ 5.04 ratingsUtilitiesFreeData updated 2026-09-15
Calculate , perimeter, , and weight for 170+ geometric shapes. Input measurements or use calculation methods for missing values. Select materials like metal, wood, or liquid to determine weight. Search shapes by typing or swipe through categories.
Calculate percentages, increase or decrease, and tips. Determine price vs. quantity, discounts, and sales tax. Compute markup, margin, compound interest, cumulative growth, and VAT. Useful for math, business, and shopping scenarios.
Calculate values, stops, and star trail length. Determine ND filter density and light meter readings. Set timers and use a dual-action torch. Access timelapse and moon size calculators. View live Flickr feeds.
Calculate rest periods for airline crews by inputting takeoff time and duration. Determine landing time and split work and rest intervals based on regulatory requirements. Track compliance with rest period guidelines and manage schedules efficiently.
Calculate , headwind, and tailwind components for takeoff and landing. Adjust wind speed and direction with drag and pinch gestures. Receive warnings when user-defined wind limits are exceeded.
Calculate elapsed time between any two hours for , duty, or other time periods. Track logs with block time and airborne time. Break down plans by takeoff time. Perform time additions and subtractions.
Calculate start times based on target end times and task durations. Input estimated for each step and receive a suggested start . Set reminders and track progress toward deadlines.
Calculate sports arbitrage opportunities by inputting odds for 2- or 3-way outcomes. Determine stake amounts for each outcome to ensure profit. Export results for record-keeping.
Calculate Recommended Weight Limit (RWL) and Lifting Index (LI) for single lifting tasks. Determine Composite Lifting Index (CLI) for multiple lifting tasks. Input lifting parameters to assess physical stress and compliance with safety standards.
Calculate daily CBD based on patient weight and hepatic impairment level. Input custom or recommended dosage. Output total daily and twice daily dosage recommendations. Adjust for hepatic impairment to refine calculations.
Manage date, battery, and system stats like RAM and memory. Track holidays, birthdays, and upcoming calendar events. Check weather for , tomorrow, and a 4-day forecast. View sun, moon, and zodiac sign data.
Calculate humidity properties using dry-bulb, wet-bulb, and dew point temperatures. Input values to determine relative humidity, vapor pressure, and specific humidity. Display results in a interface with precise Wexler–Hyland formulation.
Calculate tax and discounts in real time as values are entered. Determine subtotal and total price. Reverse calculate original price from final total. Displays formatted financial results.
Calculate product quantities for field areas or tank sizes. Determine water needed for treatment. Adjust Volume to Volume ratios. Select from various units of measure. Input data manually or via device sensors.