Miscellaneous

  • Price Per Unit Calculator
    Calculate price per unit instantly. Divide total price by number of units to compare value and find the best deal when shopping or budgeting.
  • OpenAI Token Counter
    Paste your text and count tokens for OpenAI models. Select an encoding or a model (GPT-4, GPT-4o, GPT-3.5) to see token usage for your prompts.
  • Money Counter Calculator
    Free Money Counter Calculator for US bills and coins. Enter counts of $100–$1 bills and quarters, dimes, nickels, pennies to get your cash total.
  • House Cleaning Cost Calculator
    Estimate house cleaning cost by area, hours, or number of rooms. Add a base fee and per-bedroom/bathroom rates to get a fast maid-service price quote.
  • Gas Surcharge Calculator
    Enter base rate, current gas price, threshold, and surcharge percentage to calculate the fuel surcharge amount for fuel-dependent services.
  • Cost per Minute Calculator
    Calculate cost per minute instantly by dividing total cost by total minutes. Also shows cost per hour and per second. Free online rate calculator.
  • CIDR Calculator
    Calculate CIDR notation quickly and accurately with this CIDR Calculator. Input your CIDR notation to determine IP address range, subnet mask, and network details effortlessly.
  • Roman Numeral Converter
    Convert numbers to Roman numerals and Roman numerals back to numbers (1–3999). Free, instant converter using the standard subtractive notation.
  • Rectangular Tablecloth Size Calculator
    Calculate the right rectangular tablecloth size from your table length, width and desired drop. Get exact cloth dimensions in inches instantly.
  • Time Zone Difference Calculator
    Find the hour difference between two time zones. Enter each city's UTC offset to see how many hours apart they are, plus the signed direction.
  • Wallpaper Roll Calculator
    Calculate how many wallpaper rolls you need for a room. Enter wall size, roll dimensions and pattern repeat to get rolls, strips and strips per roll.
  • Shoe Size Converter (US, UK, EU & CM)
    Convert shoe sizes between US, UK, EU and foot length in cm. Enter your foot measurement to get matching men's or women's sizes instantly.
  • Random Team Generator
    Split any number of people into balanced random teams. See group sizes, how many larger and smaller groups, and how the remainder is distributed.
  • Fuel Cost Calculator
    Estimate the gas cost of any trip from distance, vehicle MPG, and fuel price. See total cost, gallons needed, and cost per mile instantly.
  • Mixed Number / Decimal Calculator
    Convert mixed numbers and fractions to decimals, or convert any decimal to a simplified fraction and mixed number. Free, instant, with step-by-step results.
  • Days Until Calculator
    Count the days until any future date, or days since a past date. Free countdown calculator showing days and weeks remaining to your target.
  • Hours Worked Calculator
    Free hours worked calculator. Enter clock in and clock out times plus break minutes to get total hours worked in decimal and hours-and-minutes format.
  • Day of the Week Calculator
    Find out what day of the week any date falls on using Zeller's congruence. Enter year, month and day to get the weekday instantly.
  • Chronological Age Calculator
    Calculate exact chronological age in years, months and days between a birthdate and any as-of date, plus total months, weeks and days.
  • Random Number Generator
    Free random number generator. Pick one or many integers in any range, with or without duplicates. Set min, max and count to generate random numbers instantly.
  • Coin Flip Probability Calculator
    Calculate the probability of getting exactly k heads in n coin flips. Uses the binomial formula C(n,k)·p^k·(1-p)^(n-k) for streaks and fair or biased coins.
  • Letter Grade to Percentage Calculator
    Convert points earned to a percentage and letter grade instantly. Enter your score and total to see your percentage, letter grade, and 4.0 GPA.
  • Inches to Feet Converter
    Convert inches to feet instantly. Enter any length in inches and get the result in decimal feet plus a feet-and-inches breakdown using feet = inches / 12.
  • Shoe Size Converter
    Convert your foot length in cm to EU, US, and UK shoe sizes for men and women using Brannock-based linear sizing relations.

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