Other Calculators
A mix of useful calculators that don’t fit elsewhere — GPA, tip, aspect ratio, password strength, BPM and more.
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Earth and Weather
Wind Chill CalculatorFind how cold it actually feels using the NWS wind chill formula.Heat Index CalculatorFind how hot it actually feels using the NWS heat index formula.Earthquake Magnitude Energy CalculatorCompare the relative energy release of two earthquake magnitudes.Latitude Longitude Distance CalculatorFind the great-circle distance between two coordinates.Sun Exposure Calculator (Sunburn Time)Estimate how long unprotected skin can stay in the sun before burning.
Education
GPA CalculatorCalculate your grade point average from grades and credit hours.College GPA CalculatorCombine your previous GPA with this semester to find your cumulative GPA.Final Grade CalculatorFind the score you need on your final exam to reach a target grade.Grade CalculatorFind your weighted average grade from assignment scores and weights.Test Grade CalculatorFind your test score percentage and letter grade from correct answers.ACT Composite Score CalculatorFind your ACT composite score from your four section scores.Semester Grade CalculatorCombine homework, test and final exam scores into one semester grade.GWA Calculator (Philippine Grading Scale)Calculate your General Weighted Average on the 1.0-5.0 Philippine scale.Impact Factor CalculatorCalculate an academic journal's impact factor from citations and articles.
Internet and Network
Data Usage CalculatorEstimate total data usage over time from a daily average.IP Subnet CalculatorFind the network address, broadcast address and usable hosts for a subnet.Uptime Percentage CalculatorConvert downtime minutes into an uptime percentage and "nines" rating.Base64 Encoder & DecoderEncode text to Base64 or decode a Base64 string back to text.Upload Time CalculatorEstimate how long a file will take to upload at a given speed.
Logistics
Dimensional Weight CalculatorFind a package's billable shipping weight from its dimensions.CBM Calculator (Cubic Meter Shipping Volume)Calculate shipping volume in cubic meters for one or more items.Pallet Calculator (Boxes Per Pallet)Find how many boxes fit on a standard pallet.Reorder Point CalculatorFind the inventory level that should trigger a new purchase order.
Music
BPM CalculatorFind a song's tempo in beats per minute by tapping out beats.Note Frequency CalculatorFind the exact frequency in Hz of any piano key or musical note.Vocal Range CalculatorEstimate your voice type from your lowest and highest comfortable notes.Chord CalculatorFind the notes that make up any chord from its root and type.Guitar Fret CalculatorFind the exact distance from the nut to any fret on a guitar.Music Scale CalculatorFind every note in a major, minor, pentatonic or blues scale.
Other
Other Popular
Poker Odds Calculator (Outs to Probability)Convert your outs into the probability of hitting your hand.Aquarium Volume and Stocking CalculatorFind your tank's gallon capacity and a rough fish stocking limit.PERT Calculator (Project Estimation)Estimate task duration from optimistic, likely and pessimistic times.NaNoWriMo Word Count Pace CalculatorFind your daily writing target to hit a word count goal.Age on Other Planets CalculatorFind out how old you'd be on Mercury, Mars, Jupiter and more.Dating Theory Calculator (37% Rule)Find the "look then leap" age using the optimal stopping rule.
Photo and Video
Aspect Ratio CalculatorSimplify a width and height into a standard aspect ratio.PPI Calculator (Pixels Per Inch)Find a screen or image's pixel density in pixels per inch.TV Size Viewing Distance CalculatorFind the ideal viewing distance for your TV or screen size.Depth of Field CalculatorEstimate a photo's sharp-focus range from focal length, aperture and distance.Image File Size CalculatorEstimate an uncompressed image's file size from its dimensions.Video File Size CalculatorEstimate a video's file size from its bitrate and duration.Shutter Speed / Exposure Value CalculatorCalculate photographic exposure value (EV) from aperture, shutter speed and ISO.Camera Field of View CalculatorFind a camera's horizontal, vertical and diagonal field of view.Focal Length for Target Field of View CalculatorFind the focal length needed to achieve a specific field of view.Screen Size Calculator (Width & Height from Diagonal)Find a screen's width and height from its diagonal size and aspect ratio.
Seasons and Holidays
Easter Date CalculatorFind the date of Easter Sunday for any Gregorian calendar year.Trick-or-Treat Sunset CalculatorFind a recommended trick-or-treating start and end time around sunset.Christmas Tree Water Consumption CalculatorEstimate how much water your Christmas tree needs each day.New Year's Countdown CalculatorFind the days and hours remaining until January 1st.Christmas Countdown CalculatorFind the days and "sleeps" remaining until Christmas Day.
Tech and Electronics
Password Entropy CalculatorMeasure how strong a password is in bits of entropy.Battery Life CalculatorEstimate how long a battery will last under a given current draw.Download Time CalculatorEstimate how long a file will take to download at a given speed.ASCII ConverterConvert text into its ASCII character codes.Chmod Permissions CalculatorConvert a Unix chmod octal code into readable file permissions.RAID Storage CalculatorFind the usable storage capacity of a RAID array.Battery Capacity (Energy) CalculatorConvert battery capacity and voltage into total stored energy in watt-hours.Morse Code TranslatorConvert text into International Morse Code.Hash IdentifierGuess a hash string's algorithm from its length and character set.Title Case ConverterConvert text into properly capitalized title case.Sentence Case ConverterConvert text into sentence case, capitalizing only the first letter of each sentence.Binary to Text ConverterDecode a binary string of 0s and 1s back into readable text.Text to Binary ConverterConvert readable text into its 8-bit binary representation.Caesar Cipher ShifterEncode or decode text with a classic Caesar cipher letter shift.Vigenère Cipher CalculatorEncode or decode text with a Vigenère cipher and keyword.3D Printing Cost CalculatorEstimate the material and electricity cost of a 3D print.
Video Games
KD Calculator (Kill/Death Ratio)Calculate your kill/death ratio and see how it rates.Minecraft Stack CalculatorConvert an item count into full stacks and leftover items.Pokémon Go Candy CalculatorFind how many more candies (or catches) you need to evolve.Among Us Impostor Odds CalculatorFind the odds of being an impostor and of a correct blind vote.D&D 5e Hit Point CalculatorCalculate a D&D 5th Edition character's total hit points by level.
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