Other Calculators
Useful calculators that do not fit the categories above.
- Aspect Ratio Calculator Find the aspect ratio of any width and height, such as 1920 × 1080 = 16:9, or resize to a new width or height while keeping the same ratio.
- Bandwidth Calculator The connection speed needed to move data in a set time, or the monthly data and average bandwidth a website uses.
- Birthday Paradox Calculator The chance that two people in a group share a birthday, how many people give any target probability, and the chance someone shares yours.
- Character Counter Count characters with and without spaces, letters, digits and punctuation, bytes and SMS messages, and check text against post and SEO limits.
- Coin Flip Simulator Flip a virtual coin once or up to 10,000 times, with the heads and tails count, the longest streak and how likely the result was.
- Color Converter Convert colours between HEX, RGB, HSL, HSV and CMYK, with the colour's luminance and whether white or black text reads best on it.
- Contrast Ratio Calculator Check the contrast ratio between text and background colours and whether it passes WCAG AA and AAA for normal text, large text and interface parts.
- Cribbage Hand Calculator Score a cribbage hand or crib from four cards and the starter: fifteens, pairs, runs, flushes and his nobs, with a full breakdown.
- Dice Roller Roll virtual dice — any number of d4, d6, d8, d10, d12, d20 or d100 with a modifier — and see the total, the average and the odds of your roll.
- Doubling Time Calculator How long a quantity takes to double at a steady growth rate, exactly and by the rule of 72, or the halving time for a decline.
- Download Time Calculator How long a download or upload takes from the file size and your connection speed, with overhead, the real transfer rate and the speed needed for a target time.
- DPI Calculator The DPI (dots per inch) of a print from the image's pixels and the printed size, with print quality and the largest size at 300 DPI.
- File Size Calculator Convert file and storage sizes between bytes, KB, MB, GB and TB, their binary KiB, MiB, GiB and TiB equivalents, and bits.
- Image Resize Calculator New pixel dimensions for an image resized by a percentage, to a width or height, or to fit inside a box, keeping the aspect ratio.
- Lottery Odds Calculator Odds of winning any lottery from the numbers picked and the pool size, with bonus balls, odds of matching fewer numbers and the effect of more tickets.
- Map Scale Calculator Convert map distances to real distances and back at any scale such as 1:25,000, or find a map's scale from a known distance.
- Number to Words Converter Write any number out in English words — whole numbers, decimals and negatives, ordinals like twenty-first, and cheque style — in US or British style.
- Password Generator Generate strong random passwords of any length with letters, digits and symbols, optionally without look-alike characters, with their strength in bits.
- Password Strength Calculator Check how strong a password is: its entropy in bits, how long a brute-force attack would take, and whether it uses common patterns attackers try first.
- Print Size Calculator How large an image can be printed at a chosen DPI, in inches and centimetres, and the DPI it reaches at common print sizes from 4 × 6 to 20 × 30.
- Raffle Odds Calculator Your chance of winning a raffle from your tickets, the total sold and the number of prizes, with expected prizes and the tickets needed for a 50% chance.
- Random Number Generator Generate random whole numbers between any minimum and maximum — one or many, with or without repeats, sorted if you like — with an optional seed.
- Readability Score Calculator Score how easy any English text is to read with Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, Coleman–Liau and ARI.
- Scale Model Calculator Convert real sizes to model sizes, or model sizes back to real ones, at any scale such as 1:24, 1:72 or HO 1:87.
- Screen Size Calculator Width and height of a TV, monitor or phone screen from its diagonal and aspect ratio, in inches and centimetres, with pixel density (PPI).
- Sim Racing FOV Calculator Calculate the correct field of view for sim racing from your screen size, aspect ratio and eye distance, for single or triple screens.
- Syllable Counter Count the syllables in any word, sentence or poem, word by word and line by line, with the average syllables per word.
- Text Case Converter Convert text to UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case or CONSTANT_CASE.
- Tire Size Calculator The diameter, sidewall height, circumference and revolutions per km of a tire from its size, and how a new size compares.
- Video Bitrate Calculator The file size of a video from its bitrate and length, or the video bitrate needed to hit a target file size.
- Wind Chill Calculator The wind chill temperature from air temperature and wind speed, in metric or imperial units, with the frostbite risk.
- Word Counter Count words, characters, sentences and paragraphs in any text, with reading and speaking time and the most used words.