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3633 apps · Showing 1729–1824
Data & Calculators
1770 appsData & Calculators: Other Calculators
Baker’s Percentage from Flour & Ingredient Mass
Find an ingredient’s percentage of flour weight, or scale its mass from a target baker’s percentage.
Bandwidth Calculator
Estimate file-transfer time from file size, link speed, and protocol efficiency.
Bandwidth–RTT Data in Flight
Multiply link throughput by round-trip time to calculate a bandwidth-delay product in bits or bytes.
Base64 Encode / Decode
Encode UTF-8 text as Base64 or decode Base64 back to readable UTF-8, entirely in this browser.
Bra Size Calculator
Estimate a starting band and cup size from snug underbust and full-bust measurements.
BTU Calculator
Estimate room heating capacity from floor area, ceiling height, temperature rise, and insulation quality.
Coffee Dose & Input-Water Ratio Batch Planner
Scale coffee dose and input water across one to ten servings, retaining selectable ratio presets and clearly separating input water from a fixed-factor beverage estimate.
Concrete Calculator
Estimate concrete volume for a rectangular slab and add a waste allowance, with cubic-yard and bag totals.
Conversion Calculator
Convert common length, mass, and temperature units in either metric or customary systems.
Date Calculator
Add or subtract calendar years, months, weeks, and days from a date with month-end handling.
Day Counter
Count elapsed and inclusive calendar days, weeks, weekdays, and weekend days between two dates.
Day of the Week Calculator
Find the weekday, day of year, ISO week, quarter, and distance from today for any Gregorian date.
DDR CAS Latency in Nanoseconds
Convert CAS cycles and DDR transfer rate in MT/s to the modeled CAS delay in nanoseconds, or solve either input.
Density Calculator
Calculate density from mass and volume, with common SI and metric conversions.
Dew Point Calculator
Calculate dew point and a plain-language humidity comfort description from temperature and relative humidity.
Electricity Calculator
Estimate appliance energy use and cost from power, daily runtime, days, and electricity rate.
Engine Horsepower Calculator
Calculate engine horsepower and kilowatts from torque and rotational speed.
Exposure Value, Aperture & ISO Shutter Time
Estimate shutter duration from EV at ISO 100, aperture and ISO, using retained scene and camera-setting presets or custom values.
Fabric Strip Length and Rectangular Piece Layout
Plan a fabric strip for identical rectangular pieces in a fixed orientation. Calculate whole pieces across, rows down and needed strip length, or solve a piece length.
File Transfer Size, Rate & Duration
Solve ideal transfer duration, average payload rate or data size with bit, byte, decimal and binary unit controls.
File Upload Duration from Transfer Rate
Estimate upload duration from decimal file size and effective upload bitrate, or solve the required bitrate or transferred size.
Fuel Cost Calculator
Estimate trip fuel use, total cost, and cost per traveller from distance and vehicle efficiency.
Gaming K/D & KDA from Match Counts
Calculate kills per death and kills-plus-assists per death from nonnegative whole counts and at least one death.
Garlic Clove, Powder & Minced Substitution Estimates
Scale approximate garlic substitutions among cloves, powder, granules, flakes, chopped garlic, minced garlic and garlic salt with explicit spoon sizes.
Gas Mileage Calculator
Calculate L/100 km, kilometres per litre, and miles per US gallon from distance and fuel used.
GDP Calculator
Calculate expenditure-based gross domestic product and the contribution of net exports.
Golf Handicap Calculator
Estimate a World Handicap System-style index from recent score differentials.
GPA Calculator
Calculate a credit-weighted GPA from letter grades and course credits.
Grade Calculator
Calculate a current percentage and the score needed on a remaining final assessment.
Gravel Calculator
Estimate gravel volume, weight, and delivery tonnage from area, depth, and material density.
Ground Pixel Size from Camera Geometry
Estimate ground sampling distance from height above ground, physical sensor width, real focal length and image width in pixels.
Ham Portion Weight & Guest Planner
Estimate a ham purchase weight from equivalent servings using the retained boneless and bone-in portion assumptions.
Heat Index Calculator
Estimate apparent temperature from air temperature and relative humidity with the NOAA regression.
Height Calculator
Estimate a child's mid-parental adult height range from biological-parent heights and the sex adjustment used by the method.
Horsepower Calculator
Calculate mechanical horsepower and watts from force, travel distance, and elapsed time.
Hours Calculator
Calculate elapsed work time between clock times, including overnight shifts and an unpaid break.
Ideal Op-Amp Gain from Resistor Ratio
Calculate ideal inverting gain magnitude or non-inverting voltage gain from the input and feedback resistors, with reverse resistance calculations.
Impact Angle from Ellipse Width & Length
Estimate an impact angle from the short and long axes of an ideal elliptical mark, or solve an axis from a supplied angle.
Independent Drop Odds & Expected Wait
Calculate the probability of at least one success over repeated independent attempts, plus the expected wait from a fixed per-attempt chance.
Inventory Reorder Level from Days of Cover
Calculate a stock reorder level from replenishment lead time, base-cover days, safety-cover days and a steady sales rate.
IP Subnet Calculator
Calculate IPv4 network, broadcast, usable host range, mask, wildcard, and host capacity from CIDR notation.
Love Calculator
Create a stable, playful name-match score for entertainment, with the same names always returning the same result.
Mashed-Potato Servings & Recipe Mass Planner
Scale mashed-potato portions by mass or estimated cup volume, using an explicit 210 g-per-cup assumption and an 80/20 potato-to-liquid mass split.
Mass Calculator
Calculate mass from density and volume, with grams, kilograms, and pounds.
Mileage Calculator
Calculate business mileage reimbursement and fuel-cost comparison for a trip.
Molarity Calculator
Calculate solution molarity, millimolar concentration, and amount from moles and volume.
Molecular Weight Calculator
Calculate molar mass from a chemical formula, including grouped formulas such as Ca(OH)2.
Mulch Calculator
Estimate mulch volume and bag count from landscape area, depth, and bag size.
Multirotor Thrust Target per Motor
Estimate a static thrust target per motor from total mass, motor count and a chosen thrust-to-weight ratio.
Non-Drop Timecode to Whole Frame Count
Convert canonical hours, minutes, seconds and frame components to a frame offset at a whole-number constant frame rate.
Ohm's Law Calculator
Calculate voltage, current, resistance, and power from any two selected electrical values.
Password Generator
Generate a high-entropy password locally with configurable length and character sets.
Popcorn Kernels, Portions & Calorie Estimate
Estimate kernels for a group from portion size and an assumed popping yield, with illustrative calories per portion.
Rainfall Depth & Catchment Water Volume
Calculate theoretical water volume from rainfall depth and catchment area, with optional rectangular dimensions and volume conversions.
Resistor Calculator
Decode a four-band resistor value from colour digits, multiplier, and tolerance.
Rice & Water Volume Ratio Planner
Scale water volume from dry-rice volume using the retained rice presets or your own water-to-rice ratio.
Rolled Material Length, Core and Thickness
Estimate tightly packed roll length from outer diameter, core diameter and uniform material thickness, or solve a missing measurement with compatible units.
Roman Numeral Converter
Convert whole numbers to canonical Roman numerals or Roman numerals to decimal values.
Roofing Calculator
Estimate sloped roof area, roofing squares, bundles, and waste from plan dimensions and roof pitch.
Shoe Size Conversion
Estimate equivalent US, UK, and EU adult shoe sizes from one selected system.
Signal Travel Delay & Velocity Factor
Calculate one-way propagation time from path length and signal speed, using captured material presets or a custom speed.
Sleep Calculator
Plan bedtimes or wake times around approximate 90-minute sleep cycles and a settling allowance.
Speed Calculator
Calculate speed from distance and time with km/h, m/s, mph, and pace conversions.
Square Footage Calculator
Calculate rectangular area, total quantity, waste allowance, square yards, and square metres.
Stair Calculator
Estimate riser count, actual rise, tread run, staircase length, and stringer length.
THD Percentage & Decibel Level
Convert a total harmonic distortion amplitude ratio between percentage and decibels over the captured 0.001%–100% range.
Tile Calculator
Estimate tile count, area, and boxes from surface and tile dimensions with grout and waste allowance.
Time Calculator
Add or subtract two hour-minute-second durations and convert the result to total units.
Time Card Calculator
Calculate weekly hours and gross pay from a repeating shift, workdays, break, rate, and overtime settings.
Time Duration Calculator
Calculate elapsed time between two clock times, including overnight spans and break deductions.
Time Zone Calculator
Convert a local date and time between fixed UTC offsets, including dates that cross midnight.
Time-Lapse Frames, Interval & Storage Plan
Plan frame count, capture interval and photo storage from final clip duration, playback frame rate and recording time.
Tip Calculator
Calculate tip, total bill, and per-person split with optional sales tax separated from the tipping base.
Tire Size Calculator
Compare two metric tire sizes for diameter, circumference, sidewall, revolutions, and speedometer difference.
Two-Quarter & Final Exam Semester Grade
Combine two quarter scores and a final exam using weights totaling 100%, or solve a missing score or weight.
Two-Year Journal Citation Ratio
Calculate citations divided by two years of citable-item counts, with clear numerator, denominator and reporting-window assumptions.
Uncompressed Audio Size & PCM Bitrate
Calculate raw PCM audio size and bitrate from sample rate, bit depth, channels and duration, with reverse duration calculations.
Uncompressed Image Pixel Data Size
Calculate theoretical image data from pixel dimensions and bits per pixel, with decimal and binary data-size units.
Uncompressed Video Frame & Storage Size
Estimate ideal uncompressed frame size and video pixel-data size from dimensions, bits per pixel, integer frame rate and duration.
URL Encode / Decode
Encode text for a URL component or decode percent-encoded text locally.
US Butter Sticks, Grams, Cups & Spoons
Convert US quarter-pound butter sticks to exact mass equivalents and conventional US recipe cups, tablespoons, teaspoons and millilitres.
Voltage Drop Calculator
Estimate two-conductor copper or aluminum circuit voltage drop from length, current, voltage, and wire area.
Weight Calculator
Calculate gravitational weight force from mass and local gravitational acceleration.
Whole Frame Count to Non-Drop Timecode
Split a whole frame count into hours, minutes, seconds and remaining frames at a positive whole-number frame rate.
Wind Chill Calculator
Calculate the North American wind-chill index from air temperature and wind speed.
Data & Calculators: GeoJSON Basics
GeoJSON Bounding Box Maker
Find the smallest west, south, east, and north box that holds your GeoJSON.
GeoJSON Center and Centroid Finder
Find the centre of the outer box and the centre made from all shape points.
GeoJSON Coordinate Cleaner
Remove needless repeated points from lines and polygons without changing their visible shape.
GeoJSON Line to Polygon Converter
Close a GeoJSON line and turn it into a polygon feature.
GeoJSON Polygon to Line Converter
Convert polygon rings into GeoJSON lines while keeping the feature properties.
GeoJSON Validator
Check whether GeoJSON is readable and whether each map shape follows the basic geometry rules.
Data & Calculators: Measure & Navigate
Bearing and Midpoint Calculator
Find the compass bearing, distance, and halfway point between two map coordinates.
Destination Point Maker
Start at one coordinate, travel a set distance and bearing, and get the destination point.
GeoJSON Area Calculator
Measure a polygon in square metres, square kilometres, hectares, and acres.
GeoJSON Route Length Calculator
Find the full ground distance of a GeoJSON line in kilometres, miles, metres, or nautical miles.
Great Circle Route Maker
Create a curved GeoJSON route that follows the shortest path across the globe between two points.