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1822 apps · Showing 1153–1248
Data & Calculators
1822 appsData & Calculators: Everyday Calculators
Calculator · CalculateMechanical Speedometer Gear Ratio at 1001 Revs/MileRelate tire diameter or rolling revolutions, axle ratio and drive/driven gear tooth counts using the captured 1001 cable-revolutions-per-mile calibration.Calculator · CalculateMinute Duration Converter & Ten-Value SumConvert a duration through minutes, seconds, hours and fixed longer units, or add the first two through ten duration values.Calculator · CalculateMinutes Between Two Clock OffsetsSubtract a start time from an end time using hours, minutes and seconds, with editable duration units.Calculator · CalculateNautical Distance & Constant-Speed Time CalculatorConvert nautical miles to metric or statute units, and calculate a separate constant-speed journey.Calculator · CalculatePaper Sheet Mass, Grammage & 500-Sheet BasisCalculate sheet and stack mass from grammage, or convert 500-sheet basis weights using retained paper-size and basic-sheet presets.Calculator · CalculatePaper Stack & Sheet Thickness CalculatorEstimate average sheet thickness from a measured paper stack.Calculator · CalculatePer-Minute Service Cost CalculatorCompare a service or activity cost with its duration.Calculator · CalculatePet-Sitting Hourly Cost & Multi-Day BudgetCalculate an hourly pet-sitting budget from care hours per day, days of care and the agreed hourly rate.Calculator · CalculatePodcast Listening Time & Episode CapacityEstimate episode equivalents from daily listening opportunities, playback speed and an explicit extra-time allowance.Calculator · CalculatePrice per Gram & Multipack ComparisonCompare prices per gram for single quantities or equal-weight multipacks, with other mass units and reverse calculations.Calculator · CalculatePrice per Ounce & Multipack ComparisonCompare prices per ounce for single quantities or equal-weight multipacks, with other mass units and reverse calculations.Calculator · CalculatePrice per Pound & Multipack ComparisonCompare prices per pound for single quantities or equal-weight multipacks, with other mass units and reverse calculations.Calculator · CalculateProduction Date plus Entered Fixed Storage DurationCalculate production date plus entered fixed storage duration with calendar inputs, retained inverse relationships and explicit duration conventions.Calculator · CalculateProduction Time per Unit CalculatorCalculate average cycle time from output and net available production time.Calculator · CalculateReading & Speaking Duration PlannerEstimate reading and speaking duration using presets or your own pace.Calculator · CalculateReading Pace & Book Planning CalculatorConnect reading pace, daily reading time, pages and books over a chosen period.Calculator · CalculateRecurring Rate per Year, Day, Hour & SecondConvert an average count or signed quantity per time unit between years, months, weeks, days, hours, minutes and seconds.Calculator · CalculateReward-Mile Valuation & Cash Fare ComparisonCompare a cash fare with miles plus fees using an entered cents-per-mile valuation or the retained illustrative airline presets.Calculator · CalculateRoom Lumens & Bulb Count from Target LuxEstimate lumens and whole bulbs from rectangular area and target illuminance, with retained room presets and a custom target.Calculator · CalculateSeries Total Watch Time CalculatorAdd up viewing time from episode length, episodes and seasons.Calculator · CalculateSession Duration Total & Decimal-Hour ConverterTotal up to twenty hours-and-minutes durations, with a separate decimal-hours and minutes conversion pair.Calculator · CalculateShower Water & Heating Cost Model CalculatorEstimate daily water use and running costs with an explicit fixed heating-energy factor.Calculator · CalculateSingle-Session Electricity Cost CalculatorEstimate energy use and electricity cost for one operating session.Calculator · CalculateSpecified Petrol-to-Oil Volume CalculatorCalculate the oil amount for a supplied petrol-to-oil ratio.Calculator · CalculateSpeech Duration, Word Count & Speaking RateEstimate speech duration from word count and a selected pace, enter a custom rate, or measure your rate from a timed passage.Calculator · CalculateStacked Firewood Volume, Cords & PriceConvert a rectangular wood stack into full cords, a fixed 16-inch face-stack comparison and total price using exact cubic-foot conversion.Calculator · CalculateTime Span in Hours, Minutes & SecondsSubtract two times on the same timeline or solve for a start or end time.Calculator · CalculateTire, Axle Ratio & Sensor Pulses per MileEstimate pulses per mile from wheel revolutions, axle reduction and sensor teeth under a stated sensor-position model.Calculator · CalculateToothpaste Supply Duration & Repeat-Purchase BudgetEstimate how long a toothpaste tube lasts and its steady-use purchase cost from usable volume, portion size and household usage.Calculator · CalculateTraffic Flow, Density & Spacing CalculatorRelate average traffic counts, flow, density, spacing and speed.Calculator · CalculateTrip Distance, Fuel Economy & Cost CalculatorCalculate distance per unit of fuel, reciprocal consumption and trip fuel cost.Calculator · CalculateTrip Fuel Cost & Return Journey EstimateEstimate fuel quantity and entered-price cost for a one-way or return trip, using known consumption or measured distance and fuel.Calculator · CalculateTrip Fuel Use & Cost CalculatorCalculate fuel economy, consumption and fuel spending for a trip.Calculator · CalculateTwenty-Entry Duration Sum & Missing TimeAdd up to twenty signed durations in hours, minutes and seconds, or solve a missing duration from the total.Calculator · CalculateTwo-Product Unit Price & Pack ComparisonCompare two products by price per mass, volume or item, including multipacks and the absolute difference in unit prices.Calculator · CalculateTyping Words & Keystrokes Rate CalculatorConvert typing rates using five keystrokes per standard word.Calculator · CalculateVehicle Base Weight, Payload & GVWR ArithmeticAdd a vehicle base weight and rated payload, or subtract either from a supplied gross vehicle weight rating.Calculator · CalculateVolume Ratio to Ideal Isothermal PressureCalculate the absolute-pressure change for a fixed amount of ideal gas held at constant temperature.Calculator · CalculateWater & Concentrate Mixture CalculatorSplit a target mixture volume using a water-to-concentrate ratio.Calculator · CalculateWheel Width & Offset Position ComparisonCompare changes in a wheel’s inner reach and outer position from width and signed offset.Calculator · CalculateWizard Coin Galleon, Sickle & Knut EquivalentsConvert fictional coin amounts using the fixed relationships of 17 sickles per galleon and 29 knuts per sickle.
Data & Calculators: Groups & Breaks
Numbers · GenerateCkmeans Number Group MakerGroup a sorted number list so values inside each group stay close together.Numbers · CalculateCluster Silhouette Score CheckerGroup points with k-means, then score how well each point fits its group.Numbers · GenerateEqual Interval Breaks MakerMake evenly spaced class breaks from the smallest value to the largest.Numbers · GenerateJenks Natural Breaks MakerPlace break points where the number list has useful gaps.Numbers · GenerateK-Means Point Group MakerGroup two- or three-part points around nearby centers.Numbers · GenerateKernel Density Estimate MakerEstimate how tightly values gather around points across the list range.Numbers · GenerateNumber Frequency Table MakerSort a number list and count how often every value appears.
Data & Calculators: Kitchen & Groceries
Data & Calculators: Local SQL
CSV / JSON / SQL · ConvertCSV SQL WorkbenchRun SQL queries on CSV files in your browser. Check column types, combine tables and download your results.CSV / JSON / SQL · ConvertJSON SQL Query ToolQuery JSON data with SQL on your device. Explore tables and nested values, then download the results.SQLite / SQL / CSV / JSON · ConvertSQL Practice SandboxLearn SQL with a working sample database, eight guided exercises, hints, checked results and reusable query notebooks.SQLite / SQL / CSV / JSON · ConvertSQLite File ExplorerOpen a SQLite database on your device. Browse tables, inspect their links and download query results without uploading the file.CSV / JSON / SQL · ConvertTable Join BuilderJoin CSV or JSON tables by matching columns. Preview the SQL, choose how to keep unmatched rows and download the combined data.
Data & Calculators: Maps & GIS
CSV / GeoJSON · ConvertCoordinate System ConverterConvert map coordinates between WGS84, Web Mercator, UTM and Canada Lambert. Check the converted points on a map.GeoJSON / CSV · ConvertEncoded Route DecoderDecode an encoded polyline into map coordinates. Preview the route and download its longitude and latitude values.Stroke JSON / SVG · ConvertFreehand Stroke OptimizerSimplify a freehand drawing with fewer points. Compare detail levels and save a smaller SVG or editable project.GeoJSON / CSV · ConvertGeographic Measurement DeskMeasure routes and areas on a map. Draw or import shapes, find their centers and create a boundary around them.Shapefile ZIP / GeoJSON / CSV · ConvertGeoJSON to Shapefile ExporterConvert GeoJSON to shapefile downloads. Keep map shapes and their data together with the files needed to open them.CSV / GeoJSON / Shapefile ZIP · ConvertGIS Attribute Export AssistantChoose which map shapes and data fields to export. Download a smaller GIS dataset or a shapefile package.GeoJSON / CSV · ConvertGPX to GeoJSON ConverterTurn GPX tracks, routes and waypoints into GeoJSON and inspect their names, coordinates and properties.GeoJSON / CSV · ConvertKML to GeoJSON ConverterConvert local KML placemarks and geometry into editable GeoJSON with a map and attribute preview.GeoJSON / CSV · ConvertPersonal Places MapPin meaningful places, edit coordinates and notes, organize categories and save a portable map dataset.GeoJSON / CSV · ConvertPhoto Travel MapMap GPS-tagged photos locally, inspect their locations and place photos without location tags by hand.Encoded polyline / GeoJSON · ConvertRoute URL PackerTurn route coordinates into a short encoded polyline. Preview the route and copy the text for use in mapping tools.GeoJSON / CSV · ConvertShapefile PreviewerOpen a local shapefile ZIP, choose a layer and inspect its map geometry, coordinate system and attribute records.GeoJSON / CSV · ConvertShapefile to GeoJSON ConverterConvert supported shapefile archives into WGS84 GeoJSON while preserving geometry and decoded attributes.CSV / GeoJSON · ConvertSurvey Coordinate CheckerCheck whether two sets of map coordinates describe the same places. Measure the gaps and flag points beyond your chosen limit.
Data & Calculators: Numbers & Reports
CSV / JSON · ConvertLocalized Report FormatterFormat numbers and prices in a CSV or JSON table for different regions. Check errors and download your finished report.CSV / JSON · ConvertNumber Formatting PlaygroundSee how numbers, prices and percentages look in different languages and regions. Compare formats without changing the values.
Data & Calculators: Percentiles & Outliers
Numbers · CalculateFive Number Summary MakerFind the minimum, first quartile, median, third quartile, and maximum.Numbers · CalculateIQR Number List Outlier FinderUse the 1.5 × IQR rule to flag unusually low or high values.Numbers · CalculateMAD Number List Outlier FinderUse the median absolute deviation to find values far from the center.Numbers · CalculateMedian Absolute Deviation FinderFind the median distance from the list median, with less pull from extreme values.Numbers · CalculateNumber List Interquartile RangeFind the distance between the first and third quartiles.Numbers · CalculateNumber List Percentile Rank FinderFind the share of a list that is at or below a chosen value.Numbers · CalculatePopulation Quantile FinderFind the value at any population quantile from 0 to 1.
Data & Calculators: Personal Notebooks
Notebook / JSON / CSV · ConvertOffline Inventory NotebookKeep belongings, quantities, photo previews and locations in a searchable local notebook, with complete backups and CSV import.Notebook / JSON / CSV · ConvertOffline Recipe NotebookSave recipes with ingredient lists, ordered steps and photos. Search locally, scale quantities and export a clean printable recipe.Notebook / JSON / CSV · ConvertPersonal Snippet VaultKeep reusable text and code snippets in searchable categories, with tags, favorites, exact-text copying and portable exports.Notebook / JSON / CSV · ConvertReading & Watchlist TrackerKeep books, films, series and courses together. Track progress, ratings, dates and notes in a private, searchable local collection.
Data & Calculators: Physics Calculators
Calculator · CalculateAlfvén Wave Speed from Field and Mass DensityCalculate alfvén wave speed from field and mass density with compatible units, known-value inputs and clearly stated model assumptions.Calculator · CalculateAngular Acceleration from Rate Change or Tangential MotionCalculate signed average angular acceleration from initial/final rotation rates and elapsed time, or from tangential acceleration and radius, with all captured units and inverses.Calculator · CalculateAngular Momentum for a Particle or Fixed-Axis BodyCalculate angular momentum from mass, tangential velocity and radius, or from moment of inertia and angular velocity.Calculator · CalculateAngular Rate, Cycle Frequency & PeriodCalculate mean angular rate from displacement and time, or cyclic angular frequency from cycle frequency and period.Calculator · CalculateAngular Size & Milliradian Distance EstimateEstimate range from a known object height and its angular height using the small-angle milliradian relationship.Calculator · CalculateAngular Velocity from Angle, Time or Tangential MotionFind signed angular velocity from angle change over elapsed time or from tangential velocity and radius, with optional endpoint angles, RPM/radians/hertz and inverse controls.Calculator · CalculateBiot Number from Volume, Area & Thermal PropertiesCalculate characteristic length V/A and Biot number from convection coefficient and solid conductivity with consistent thermal units.Calculator · CalculateBlackbody Wavelength and Frequency PeaksFind the separate wavelength-density and frequency-density peaks of ideal blackbody radiation, with editable temperature inverses and exact SI constants.Calculator · CalculateBragg Diffraction Angle & Lattice SpacingCalculate Bragg angle, wavelength, lattice spacing or positive integer diffraction order using the principal physical angle.Calculator · CalculateBuoyancy & Displaced Fluid MassCalculate buoyant force from submerged volume, fluid density and gravity, using fluid presets or a custom density.Calculator · CalculateCapacitance for Ideal Stored EnergyCalculate ideal capacitance from a positive stored-energy target and voltage magnitude.Calculator · CalculateCapacitor Charge, Voltage & Stored EnergyRelate positive capacitance, voltage, charge and energy in an ideal linear capacitor.Calculator · CalculateCapacitor Reactance & Angular FrequencyRelate positive capacitance and frequency to capacitive-reactance magnitude in an ideal AC model.Calculator · CalculateCapacity-to-Load Ratio & Factor of SafetyCalculate the ratio of positive load capacity to applied design load, including ratios at or below one.Calculator · CalculateCarrier Drift, Current and Cross-SectionBalance electric current with carrier density, charge magnitude, cross-sectional area and signed drift using all captured units and inverse relationships.