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Everyday Calculators
Free calculators for fuel costs, electricity, dice rolling, and daily life.
Gas Mileage Calculator Calculate your car's fuel economy in MPG and cost per mile. Track fuel efficienc
Fuel Cost Calculator Estimate the total fuel cost for any road trip. Enter distance, MPG, and gas pri
Electricity Cost Calculator Calculate how much any appliance or device costs to run. Find daily, monthly, an
Dog Age Calculator Convert your dog's age to human years by breed size. The modern formula accounts
Snow Day Calculator Estimate the probability of a snow day school closure based on forecasted snowfa
Dice Roller Roll virtual dice for tabletop RPGs, board games, and decisions. Supports D4, D6
Password Generator Generate strong, random passwords with custom length and character sets. Calcula
Subnet Calculator Calculate network address, broadcast address, subnet mask, and number of usable
Random Name Picker Pick random winners or entries from a list. Select one or multiple names fairly
Sleep Quality Calculator Calculate your sleep quality score, total sleep time, and number of sleep cycles
Bra Size Calculator Find your correct bra size in US and UK sizing from your band and bust measureme
Carbon Footprint Calculator Calculate your annual carbon footprint from driving, flights, and home energy us
Coin Flip Flip a virtual coin online. Simulate single or multiple coin tosses with fair 50
Tip Split Calculator Split a restaurant bill with tip among friends. Calculate each person's share wi
Age Difference Calculator Calculate the age difference between two people in years, months, and days.
Screen Time Calculator Calculate your total daily screen time across devices. See weekly and yearly tot
Word Counter & Text Statistics Estimator Enter a word count to calculate reading time, speaking time, page count, and rea
EV Savings Calculator Calculate how much you save driving an EV vs a gas car. Compare annual fuel cost
Ring Size Calculator Convert finger circumference or diameter to ring sizes in US, UK, EU, and Japan/
Electricity Bill Calculator Calculate your total monthly electricity bill from overall kWh usage with flat,
Unit Price Calculator Compare the price per unit of two or three products to find the best deal. Suppo
Wedding Budget Calculator Plan your wedding budget with recommended allocations, vendor quotes, guest coun
Road Trip Cost Calculator Calculate the total cost of a road trip including fuel, hotels, food, tolls, par
Electricity Usage Calculator Calculate monthly electricity usage and cost by inventorying all your appliances
Grading Scale Calculator Convert raw scores to letter grades and GPA points using standard, custom, or cu
Aspect Ratio Calculator Calculate the aspect ratio of any image or screen from its width and height. Fin
PPI Calculator Calculate pixels per inch (PPI) for any screen from its resolution and diagonal
Dog Food Calculator Calculate how much to feed your dog based on weight, age, and activity level. Ge
AI Cost Calculator Estimate your monthly AI API costs for GPT-4o, Claude Opus, Gemini Pro, and othe
EV Charging Cost Calculator Calculate the cost to charge your electric vehicle at home or at public DC fast
Lawn Fertilizer Calculator Calculate how many pounds and bags of fertilizer your lawn needs based on area,
Pool Chemical Calculator Calculate how much chlorine, pH balancer, alkalinity increaser, and shock treatm
Firewood Calculator Calculate how many cords of firewood you need for the heating season. Compare wo
Cat Age Calculator Convert your cat's age to human years using the AAHA-adjusted formula. Find your
Recipe Scaler Scale any recipe up or down instantly. Enter original and target servings to get
Readability Calculator Check text readability with Flesch Reading Ease, Flesch-Kincaid Grade Level, Gun
DPI Calculator Calculate print size from image resolution and DPI. Find required pixels for any
Shipping Cost Calculator Estimate shipping costs for USPS, UPS, and FedEx based on package weight, dimens
Irrigation Calculator Calculate how many sprinkler heads you need, total GPM flow rate, weekly water u
Grass Seed Calculator Calculate how many pounds of grass seed you need for a new lawn, overseeding, or
Propane Calculator Calculate propane tank fill cost, BTU capacity, monthly usage by appliance, and
Fabric Calculator Calculate how many yards of fabric you need for curtains, dresses, quilts, and u
Dog Pregnancy Calculator Calculate your dog's estimated due date based on mating date. Track canine pregn
Caffeine Intake Calculator Calculate your daily caffeine intake from coffee, tea, and energy drinks. Check
Aquarium Volume Calculator Calculate your aquarium volume in gallons and liters, water weight, heater watta
Sourdough Hydration Calculator Calculate sourdough dough hydration percentage, total flour and water including
Electric Bike Range Calculator Calculate your e-bike range in miles and km from battery capacity (Wh), assist l
Snow Removal Calculator Estimate snow removal time and cost for your driveway or walkway. Compare shovel
BPM Calculator Calculate BPM from beats counted over time, convert BPM to note durations in mil
Tap Tempo Calculator Find the BPM of any song by counting beats over a timed interval. Get the neares
Note Frequency Calculator Convert musical notes to frequency in Hz using equal temperament. Look up any MI
Guitar String Tension Calculator Calculate guitar string tension in pounds using string gauge, scale length, and
Capo Position Calculator Find the guitar capo fret to play in any key using open chord shapes. Look up th
Chord Transposer Transpose guitar chord progressions up or down by semitones or to a target key.
Metronome Calculator Calculate measure duration, beat intervals, subdivisions, and polyrhythm timing
Song Key Calculator Determine the musical key and mode from a chord progression. Get Roman numeral a
Guitar Fret Spacing Calculator Calculate exact fret positions from nut using scale length. Essential for guitar
Reverb Time Calculator (RT60) Calculate room RT60 reverb time using the Sabine equation. Enter room volume and
Lorem Ipsum Generator Generate lorem ipsum placeholder text instantly. Choose number of paragraphs, wo
Slug Generator Convert any title or phrase into a clean URL slug. Supports hyphen and underscor
Case Converter Convert text between all common cases: UPPERCASE, lowercase, Title Case, Sentenc
Regex Tester Test and debug regular expressions online. Find matches, use common patterns (em
Word Frequency Counter Count the frequency of each word in your text. Find top N most common words, ana
Speech Time Calculator Calculate speech and presentation duration from word count. Enter WPM speaking p
Flesch-Kincaid Calculator Calculate Flesch Reading Ease Score (FRES) and Flesch-Kincaid Grade Level (FKGL)
SMOG Readability Calculator Calculate SMOG grade level using the Simple Measure of Gobbledygook formula. Pre
Text Diff Calculator Compare two texts and find differences. Get word-level, character-level, and lin
UUID Generator Generate UUIDs (Universally Unique Identifiers) online. Supports UUID v4 (random
Pizza Dough Calculator Calculate exact pizza dough ingredients by weight for Neapolitan, New York, or D
Yeast Conversion Calculator Convert between instant, active dry, and fresh yeast by weight. Includes sourdou
Baker's Percentage Calculator Convert baker's percentages to ingredient weights or reverse-calculate percentag
Smoking Meat Time Calculator Calculate smoking times and internal temperature targets for brisket, pork shoul
Turkey Cooking Time Calculator Calculate turkey roasting time by weight for 325°F, high-heat, or spatchcock met
Brine Calculator Calculate the exact salt amount for wet brine (5%), dry brine (1%), or equilibri
Sous Vide Time & Temperature Calculator Get sous vide water temperature and cook time for steak, chicken, pork, fish, an
Coffee Ratio Calculator Calculate the perfect coffee-to-water ratio for drip, pour over, French press, A
Espresso Ratio Calculator Calculate espresso brew ratio (yield ÷ dose) for ristretto, normale, or lungo. I
Meal Prep Portion Calculator Calculate total ingredients for batch meal prep by calories and macros. Enter me
Poker Odds Calculator Calculate poker win probability from outs using the rule of 2 and 4. Get pot odd
Parlay Calculator Calculate parlay combined odds, total payout, and expected value for 2–10 legs.
Implied Probability Calculator Convert American, decimal, or fractional betting odds to implied probability %.
Odds Converter Convert betting odds between American (+150/−110), decimal (2.50), fractional (3
Roulette Payout Calculator Calculate roulette payouts for every bet type (straight 35:1, split 17:1, street
Blackjack Strategy Calculator Get the optimal blackjack basic strategy action (hit/stand/double/split) for any
Lottery Odds Calculator Calculate lottery jackpot odds using C(n,k) combinations. Includes Powerball (1
Bingo Card Generator Generate 75-ball (5×5, B-I-N-G-O) and 90-ball British bingo cards. Calculate pro
Flight Time Calculator Calculate flight time from distance and aircraft cruise speed with wind correcti
Flight Distance Calculator Calculate great-circle flight distance between any two points using coordinates,
Jet Lag Calculator Estimate jet lag recovery time and get an optimal light-exposure and melatonin s
Layover Time Calculator Calculate layover duration and check if your connection meets minimum connection
Luggage Volume Calculator Calculate luggage linear inches and volume in liters. Check compliance with airl
Car Rental Cost Calculator Calculate total car rental cost including taxes, airport surcharges, CDW/LDW ins
Hotel Cost Per Night Calculator Calculate the true hotel cost per night including taxes, resort fees, parking, a
Toll Cost Calculator Estimate toll road costs by distance and per-mile rate, with E-ZPass transponder
Final Grade Calculator Calculate the exam score you need to reach your target course grade. Enter your
Semester GPA Calculator Calculate your GPA for the current semester from your course grades and credit h
Weighted GPA Calculator Calculate your weighted GPA on the 5.0 scale using AP, Honors, and IB courses. C
SAT Score Calculator Calculate your SAT composite score from raw section scores. See your percentile
ACT Score Calculator Calculate your ACT composite score from section raw scores. See your percentile
MCAT Score Calculator Calculate your MCAT composite score from four section scores (472–528). See your
LSAT Score Calculator Calculate your LSAT score (120–180) from section raw scores. See your percentile
Study Time Calculator Calculate how many hours you need to study based on pages to read, practice prob
Exam Curve Calculator Calculate your curved exam grade using three methods: highest-score-equals-100,
Class Rank Percentile Calculator Convert your class rank to a percentile (top X%). Compare rank across school siz
Pizza Per Person Calculator Calculate exactly how many pizzas you need for your group. Enter guest count and
Drinks Per Person Calculator Calculate exactly how many drinks you need for any party or event. Enter guest c
Cake Serving Calculator Find out exactly what size cake you need for your party or wedding. Round, sheet
Tip Jar Split Calculator Split a restaurant tip pool fairly among staff by hours worked, position weight
Dog Walker Rate Calculator Calculate recommended dog walking rates for 20, 30, or 60-minute walks. Adjust f
Babysitter Rate Calculator Calculate fair babysitter rates based on number of children, location, age group
Lawn Mowing Cost Calculator Estimate lawn mowing costs by square footage, service type, and frequency. Get p
House Cleaning Cost Calculator Estimate house cleaning costs for basic recurring, deep cleaning, and move-in/mo
Moving Truck Size Calculator Find the right moving truck size for your home. Compare 10 ft, 15 ft, 20 ft, and
Storage Unit Size Calculator Find the right storage unit size for your belongings. Compare 5x5 through 10x30
Thanksgiving Food Calculator Calculate exact quantities for a Thanksgiving dinner. Get turkey weight, stuffin
Wedding Guest List Calculator Calculate expected wedding attendance from invites sent using local (80%) and de
Birthday Party Cost Calculator Estimate birthday party costs for kids, teens, and adults. Get a full breakdown
Bitrate Calculator Calculate audio and video file size from bitrate and duration. Compare streaming
Tire Size Calculator Decode your tire size (e.g. 225/65R17) to find overall diameter, circumference,
Gear Ratio Calculator Calculate gear ratio, output RPM, and torque multiplication for single-stage, mu
Engine Displacement Calculator Calculate engine displacement in cc, liters, and cubic inches from bore, stroke,
Torque to Horsepower Calculator Convert torque and RPM to horsepower using HP = Torque × RPM / 5252. Also conver
Compression Ratio Calculator Calculate engine compression ratio from swept volume and combustion chamber size
Checksum Calculator Compare MD5, SHA-1, SHA-256, and SHA-512 hash algorithms. Learn when each is app
Piston Speed Calculator Calculate mean piston speed (m/s) from stroke and RPM. Find maximum safe RPM, pe
Car Acceleration 0-60 Calculator Estimate your car's 0-60 mph time from vehicle weight and horsepower using a pro
EV Range Calculator Calculate your electric vehicle's real-world range from battery capacity and eff
Cat Food Calculator Calculate how much to feed your cat daily based on weight, life stage, and activ
Horse Weight Calculator Estimate your horse's weight using the Carroll & Huntington heart-girth tape for
Aquarium Stocking Calculator Calculate how many fish your aquarium can safely hold using multiple methods: th
Rabbit Age Calculator Convert your rabbit's age in months to human years. Find their life stage, expec
Bird Age Calculator Convert your pet bird's age to human years by species. Covers parakeets, cockati
Pet Medication Dose Calculator Calculate pet medication doses by weight for dogs, cats, rabbits, and horses. Co
Weighted Grade Calculator Calculate your weighted course grade from assignments, midterms, and finals with