Miscellaneous

  • Dating Theory (Optimal Stopping) Calculator
    Use the 37% rule (optimal stopping / secretary problem) to find how many dates to reject before committing. Enter your pool size and get the answer.
  • Poker Pot Odds Calculator
    Calculate poker pot odds and the minimum equity you need to call profitably. Enter the current pot and the bet you must call to get instant percentages.
  • Poker EV Calculator
    Calculate the expected value (EV) of a poker decision from your win probability, the amount you win, and the amount you lose. Free and instant.
  • Rounds Per Minute Calculator
    Calculate rounds per minute (RPM) and rate of fire from rounds fired and elapsed time. Free, instant RPM calculator for any firearm or system.
  • Pizza Tip Calculator
    Calculate the tip on your pizza bill, see the grand total, and split it between friends. Quick, free tip percentage and bill splitter calculator.
  • Matched Betting Calculator
    Free matched betting calculator. Enter back odds, stake, lay odds and exchange commission to get your optimal lay stake, liability and locked-in profit.
  • Diamond Weight Calculator
    Estimate a round brilliant diamond's weight in carats from its diameter and depth in millimeters using the standard industry formula.
  • Recipe Scaling Calculator
    Scale any recipe ingredient up or down for a new number of servings. Enter the original amount and servings to get the adjusted quantity instantly.
  • Cooking Measurement Conversion Calculator
    Convert cooking measurements between teaspoons, tablespoons, cups, fluid ounces, pints, quarts, gallons, milliliters and liters (US units) instantly.
  • Pizza Calculator
    Find out how many pizzas to order for any party. Enter guests, slices per person, and slices per pizza to get the exact number to buy.
  • Nether Portal Calculator
    Convert Minecraft coordinates between the Overworld and Nether (1:8 ratio) to perfectly link your portals. Find where to build the paired portal.
  • Minecraft Stack Calculator
    Convert any item count into full Minecraft stacks plus leftovers. Supports 64, 16, and 1 stack sizes. Instantly see stacks and remainder.
  • Fish Weight Calculator
    Estimate a fish's weight from its length and girth, or from length alone using a species shape factor. Get results in pounds, ounces and kilograms.
  • Which Alcoholic Drink Is the Better Deal?
    Compare two alcoholic drinks by price per volume and price per alcohol unit. Find out which is the better value per ml and per unit of pure alcohol.
  • Roulette Payout Calculator
    Calculate roulette payouts and odds for any bet. Enter your stake and numbers covered to see net profit, total return, and the true odds.
  • Pool Table Room Size Calculator
    Find the minimum room size for your pool table. Enter playing area and cue length to get the clearance space needed on every side for comfortable shots.
  • Arithmetic Sequence Calculator
    Calculate arithmetic sequences with ease. Input the first term, common difference, and number of terms to get the last term, sum of the sequence, and a visual representation of all terms. Perfect for students and professionals working with arithmetic progressions.
  • Anthropic Claude Calculator
    Enter prompt and completion token counts and choose Claude 3 Opus, Sonnet, or Haiku to instantly estimate your Anthropic API usage cost.
  • BA Tier Point Calculator
    Calculate BA Tier Points accurately with this BA Tier Point Calculator. Input flight distance, select cabin class, and determine points for Economy, Premium Economy, Business, or First class travel.
  • Book Page Calculator
    Free book page calculator: enter total pages and your current page to instantly see pages read, pages left, and percent complete with a progress bar. Try it now.
  • Density Unit Conversion Calculator
    Convert density between 15 units instantly: g/cm^3, kg/m^3, t/m^3, lb/ft^3, lb/in^3, lb/gal and more. Universal SI-based density converter.
  • Exposure Calculator
    Calculate Exposure Value (EV) easily with our free online tool. Input aperture, shutter speed, and ISO to get accurate EV results for optimal camera exposure in various lighting conditions.
  • Cake Serving Calculator
    Estimate how many slices a round cake serves from its diameter and slice size. Free cake serving calculator for parties, weddings and events.
  • Cake Pricing Calculator
    Free cake pricing calculator for bakers. Add ingredient cost, labor, overhead and profit markup to find the right price to charge for any cake.

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