Calculate birth charts based on birth time and location. Analyze八字 structure including heavenly stems, earthly branches, and interactions. Determine fortune cycles, annual predictions, and seasonal influences.
by 子晟 谢★ 4.842 ratingsUtilitiesFreeData updated 2026-09-17
Track and calculate mahjong scores with detailed rules and variations. Input player actions to determine winning combinations. Provide clear score summaries and win/loss records. Sync game data across devices.
Calculate groundwater withdrawal using analytical formulas
Calculate groundwater pumping schemes for isolated confined or unconfined aquifers. Use analytical formulas from works by Bokhaver, Shestakov, Mironenko, and Sindicovskiy. Input parameters to determine flow rates and drawdown values.
Calculate time, speed, and distance for road rallies. Input rally details and track progress. Generate reports and adjust strategies based on real-time data. Sync with GPS devices for accurate navigation.
Calculate dates across Gregorian, Julian, Hebrew, and French Republic calendars. Convert dates to find the day of the week. Determine time spans between two dates. Add or subtract time from a . Perform various and time conversions.
Calculate antiderivatives for mathematical functions including trigonometric and logarithmic types. Solve integrals step-by-step. Display results and explanations. Save and review calculations.
Log time segments and calculate total time with Time. View block and duty intervals to manage scheduling. Perform preflight performance checks using aviation-specific calculations.
Identify landmarks, architecture, natural features, and urban elements in photos. Determine possible locations based on visual data and display results on a map. Compare multiple photos from the same location.
Estimate diameter for hydronic systems by inputting or cooling output, water flow, and temperature values. Select material to get recommended DN . Calculate pressure drop and determine pump flow and head requirements.
A utility calculates concrete or mortar requirements. Enter project dimensions to determine cement, sand, and gravel amounts. Results are provided in bags or liters based on mixer type. Includes a common settings tab for all projects.
Track ingredient costs by entering and updating prices for accurate cost calculations. Include labor and overhead expenses like time and electricity. Calculate total production costs and set prices based on desired profit margins.
Calculate BMI by entering height and weight. Provide gender-specific results and health suggestions. Track BMI changes over time and receive personalized tips for weight management.
The app calculates the smallest Thermaflex duct size for HVAC installations. Users input project volume and friction loss to determine system velocity and the appropriate duct size.
Calculate based on bill amount and tax rate. Choose to apply tip before or after tax. Adjust rounding options for total and tip amounts. View effective tip percentage based on rounding settings.
Calculate materials for slabs with precise volume and quantity estimates. Input dimensions and select units. Convert measurements and view results in cubic meters, yards, or feet. Export data for project planning.
Helps installers and DIYers calculate panel angles, size battery banks, and determine wire gauges. It generates professional PDF quotes and includes a compass for precise alignment with True North/South.
Calculate the difference between current and desired sizes based on rim input. Provide explanations on why significant differences should be avoided. Allow users to enter manufacturer-recommended sizes for comparison.
Track progress toward quitting with annual success indicators. Monitor lung color changes over time to visualize health improvements. Set reminders and receive motivational support throughout the journey.