Miscellaneous

  • 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.
  • Antipode Calculator
    Find the antipode — the exact point on the opposite side of the Earth — from any latitude and longitude. Instant antipodal coordinates.
  • 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.
  • Baseball Hit-By-Pitch Rate (HBP per 9 Innings) Calculator
    Calculate a pitcher's hit-by-pitch rate per 9 innings (HBP/9). Enter innings pitched and batters hit; get the standard per-nine baseball stat instantly.
  • 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.
  • Beer Can vs. Beer Bottle CO2 Emissions Calculator
    Compare the life-cycle CO2 emissions of 500 ml aluminum beer cans versus glass beer bottles. Editable emission factors; defaults from a Japanese LCA study.
  • 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.
  • Leap Year List Calculator
    Generate a chronological list of the next N leap years from any start year (AD 1582+) using the Gregorian leap-year rule, including century exceptions.
  • Baseball Batting Average Calculator
    Calculate a baseball player's batting average from hits and at-bats. Hits divided by at-bats, rounded to 3 decimals (e.g. .300). Used in MLB, NPB worldwide.
  • Baseball ERA (Earned Run Average) Calculator
    Calculate a baseball pitcher's ERA (Earned Run Average) from innings pitched, partial-inning outs, and earned runs. Standard 9-inning ERA, rounded to 2 decimals.
  • Baseball Games Behind (GB) Calculator
    Calculate Games Behind (GB) in baseball standings from each team's wins and losses. Standard MLB/NPB formula: GB = ((leader diff) - (trailer diff)) / 2.
  • Christian Funeral & Memorial Date Calculator (Japan)
    Compute Japanese Christian (Catholic/Protestant) memorial service dates from a date of death. Supports Western and Japanese era years (Meiji to Reiwa).
  • Test Density and Bug Density Calculator
    Compute test density and bug density per LOC and per KLOC from your test count, bug count and source code size. Free software quality metric tool.
  • Pie Chart Maker
    Free pie chart maker: enter category labels and values to get each slice's percentage share and angle in degrees, plus a drawn pie chart.
  • Beer Goggles Effect Calculator
    Calculate the novelty "beer goggles" effect score from the 2005 University of Manchester formula using alcohol, distance, smokiness, lighting and eyesight. For fun only.

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