Daily life calculator glossary: practical terms & concepts

Age calculates exact age in years, months, and days.

Aquarium Heater Size calculates wattage of aquarium heater required from tank's volume and the temperature rise required above ambient room temperature.

Aquarium Size calculates fish tank volume and stocking capacity.

Audio File Size calculates audio file sizes for WAV, MP3, FLAC, AAC, and OGG. Compare formats, estimates library storage, and check streaming bandwidth needs instantly.

Audiobook Speed calculates listening time at different playback speeds.

Bandwidth calculates file transfer times, plan household bandwidth needs, and analyze ISP plan. Handles Mbps vs MB/s automatically.

Optimal basic-strategy play, house edge by rule set, EV of every action, and bust probabilities.

A measure of musical tempo indicating the number of beats in one minute. Ranges from ~60 BPM (adagio) to 200+ BPM (prestissimo). Also used for heart rate measurement.

BPM converts BPM to note durations in milliseconds, delay times, and pitch frequencies. Includes 432 Hz vs 440 Hz reference.

Bra Size determines bra size from bust and underbust measurements.

The time it takes for the body to eliminate half of the caffeine consumed, typically 5-6 hours for adults. Affects sleep quality and determines optimal last-drink timing.

Cat Age converts cat years to human years accurately.

Cat Food calculates daily food portions and calories for cat.

Cat Litter Usage estimates how much cat litter you'll use per month and its monthly cost from the number of cats, litter type, and box-fill depth.

Cell Phone Plan Comparison compares up to 3 cell phone plans by cost per line, cost per GB, and savings.

Chicken Feed calculates how much feed backyard chicken flock needs per day, week, and month from the number of birds and their age/type.

Clothing Cost Per Wear calculates true cost per wear of any clothing item to make smarter fashion purchasing decisions.

Clothing Size Converter converts clothing sizes between US, EU, and UK systems.

Clothing Size Converter converts clothing sizes between US, UK, EU, FR, IT, AU, and JP. Covers women, men, shoes, and children with brand fit notes.

Crop Yield & Profit estimates crop yield, revenue, cost per acre, net profit, break-even price and margin for corn, soybeans, wheat and more.

Daily Habit Cost calculates true weekly, monthly, annual, and lifetime cost of any daily habit, plus the opportunity cost if you invested that money instead.

The speed at which data is transmitted between devices or over a network, measured in bits per second (bps), megabits (Mbps), or gigabits (Gbps).

Data Unit Converter converts bytes, KB, MB, GB, TB, and PB.

Date Duration calculates number of days between any two dates.

Day of the Week determines day of the week for any date, past or future, using Zeller's congruence — plus the day of the year and ISO week number.

Count down the days until any future date — a holiday, birthday, deadline, or event.

Near/far focus limits, total DOF, hyperfocal distance, and circle of confusion for any sensor, lens, and aperture.

Dog Body Condition Score scores dog's body condition on the standard 1-9 scale from rib visibility, waist shape, and abdominal tuck, with a target-weight guide.

Dog Crate Size determines right dog crate size from dog's length and height (or breed/weight), matched to standard crate size categories.

Dog Food calculates daily food portions for dog by weight.

Predict unspayed female dog's next heat cycle date from her last cycle start date and typical 6-month cycle interval.

Dog Medication Dosage by Weight converts dog's weight and a vet-prescribed mg/kg dosing rate into a per-dose milligram amount for organizing a prescribed medication schedule.

Dog Pregnancy Due Date calculates dog's whelping due date from the breeding or mating date, using the standard 63-day canine gestation period, with a weekly milestone timeline.

Dog Travel Crate Size calculates minimum airline-compliant travel crate size for dog using the IATA Live Animals Regulations formula and body measurements.

Dog Water Intake estimates how much water dog should drink per day based on body weight, activity level, and weather, in ounces, cups, and milliliters.

A popular concept for approximating a dog's age in human-equivalent years. Modern research suggests a logarithmic formula rather than the traditional 7:1 ratio.

Fabric Yardage calculates fabric needed for sewing projects.

Figure out how many cords of firewood required for the season, what a stack's volume is, and cost per cord vs other heat sources.

Fish Tank Stocking calculates how many fish tank can safely hold using the inch-per-gallon and surface-area stocking rules, from tank size and fish sizes.

Gift Budget plans gift spending across recipients and stay within total budget.

Goat Gestation calculates doe goat's kidding due date from the breeding date, using the standard 150-day (5-month) caprine gestation period.

A numerical measure of a golfer's potential ability based on recent score history. Calculated using the best 8 of the last 20 score differentials.

A score adjustment in golf that measures a player's performance relative to the course rating and slope. Calculated as: (Adjusted Score − Course Rating) × (113 ÷ Slope Rating).

Home Renovation Budget estimates home renovation costs by project type and scope, with ROI at resale.

Horse Feed calculates horse's daily forage and grain feed amounts from its body weight and activity level, using the standard 1.5-3% of body weight guideline.

Horse Gestation calculates mare's foaling due date from the breeding date, using the standard ~340-day (11-month) equine gestation period.

Horse Weight Tape estimates horse's body weight from heart girth and body length measurements using the standard weight-tape formula, without a livestock scale.

Hotel Points Value calculates value of hotel loyalty points in cents.

Hours calculates elapsed time between two clock times, including overnight spans, and converts minutes to decimal hours.

House Cleaning Cost estimates professional house cleaning costs by home size, frequency, and type.

Free irrigation calculator for crop water needs, ET, drip vs. pivot efficiency, and weekly water cost per acre.

Jet Lag estimates jet lag recovery time by time zones crossed.

Kelly Criterion Bet Sizing determines optimal bet size with the Kelly Criterion: enter edge and odds to get the mathematically proven bankroll-maximizing wager fraction.

Kitten Weight estimates kitten's age in weeks from its current body weight, using the standard 1-pound-per-month kitten growth guideline.

The number of stitches and rows per inch (or centimeter) that a knitter produces with specific yarn and needles. Essential for ensuring a finished project matches the intended size.

Laundry Cost calculates cost per laundry load and annual savings vs. laundromat.

Lawn Care Cost calculates annual lawn care costs including mowing, fertilizer, and irrigation.

LED Savings calculates savings from switching to LED light bulbs.

Litter Box Count calculates how many litter boxes required using the standard n+1 rule based on number of cats, plus multi-floor and multi-cat-household guidance.

Livestock Feed Cost calculates daily feed costs and total program cost for beef cattle, dairy, poultry, pigs, sheep, and horses. Presets included.

Lottery tax calculations determine net payout after mandatory federal withholding (24%), top federal income tax bracket rates (37%), and applicable state and local tax withholding on gambling winnings.

Tonight's lunar phase, illumination %, moon age, next full and new moon dates, plus moonrise and moonset.

Movie Marathon calculates total runtime for a movie franchise marathon.

Moving Cost Estimator estimates moving expenses and plans relocation budget.

Music Practice Time & Goal calculates how many hours and months it takes to reach music skill goal using the 10,000-hour rule and deliberate practice research.

Noise Exposure calculates daily noise dose and hearing damage risk using the NIOSH 3-dB exchange rate, from one or more noise sources and exposure times.

Outfit Budget & Style ROI calculates annual clothing spend, cost-per-wear, dormant wardrobe value, and Style ROI — with benchmark comparisons and a full wardrobe audit.

A measure of password strength expressed in bits. Higher entropy means more possible combinations and greater resistance to brute-force attacks. Calculated from character set size and length.

Pet Care Cost estimates annual pet ownership cost by species, breed size, age, and care level.

Pet Insurance Cost Estimator estimates pet insurance premiums by breed and age.

Photography Exposure calculates Exposure Value (EV) from aperture, shutter speed, and ISO, then find equivalent exposures and see depth-of-field and motion-blur impact.

Planet Visibility evaluates which planets are visible tonight from location: rise, transit and set times, altitude, magnitude and naked-eye visibility.

Plant Watering determines often to water plants and how much water to use, personalized by plant type, pot size, season, light, and soil.

Podcast Binge estimates time to catch up on a podcast backlog.

Poker Pot Odds calculates poker pot odds, equity from outs, and whether calling a bet is profitable using the rule of 2 and 4.

Pond Fish Stocking calculates how many koi or goldfish outdoor pond can support from its surface area and volume, using standard pond stocking density guidelines.

Pool Chemical calculates chlorine, pH adjuster, and alkalinity doses for pool by volume and current readings.

Power Outage Cost estimates total cost of a power outage: food, work, generator, and more.

Print Resolution calculates maximum print size for photo at any DPI and check quality ratings for every standard print size from 4x6 to poster.

Build a day-by-day schedule for transitioning dog to a new food, blending old and new food ratios over 7-10 days to avoid stomach upset.

Puppy Weight Predictor estimates puppy's adult weight from its current weight and age, or from breed size class and paw size, using standard growth curve ratios.

Rabbit Age converts rabbit's age into human-equivalent years using a rabbit-specific aging curve, plus life-stage guidance.

Reading Time estimates how long it takes to read any text or book.

Reptile Tank Heating calculates basking bulb wattage needed for reptile's enclosure from tank size, target basking temperature, and ambient room temperature.

A measurement of finger circumference used to determine the correct fit for rings. Systems vary by country (US numeric, UK alphabetic, EU millimeter-based).

Win probability, payout ratio, house edge, expected loss, and RTP for American, European, and French roulette.

Saltwater Aquarium Salinity calculates how much marine salt mix to add to reach target specific gravity or salinity (ppt), or how much freshwater to add to dilute an over-salted tank.

Shoe Size converts shoe sizes between US, EU, UK, and CM systems.

Sleep Time determines best bedtime or wake-up time based on 90-minute sleep cycles, with a sleep debt tracker and stage-by-stage timeline.

A golf course rating from 55 to 155 indicating its difficulty for bogey golfers compared to scratch. The standard slope is 113. Used in handicap differential calculations.

Solar Panel Savings estimates solar panel savings and payback period.

Solar ROI calculates solar panel payback period and lifetime savings.

Sure bets, split stake across bookmakers, and lock in guaranteed profit from 2-way and 3-way odds.

Streaming vs Cable Cost compares cable TV cost against a streaming bundle and see savings.

Free sunrise & sunset calculator with solar noon, golden hour, blue hour, twilight times and total daylight for any date and location.

Telescope Magnification calculates telescope magnification, exit pupil, true field of view, and limiting magnitude for any eyepiece and telescope combination.

Add up weekly work hours from clock-in/out times with breaks, overtime, and total pay — export a timesheet.

Time Converter converts seconds, minutes, hours, and days.

The difference in hours (and sometimes minutes) between a time zone and Coordinated Universal Time (UTC). For example, EST is UTC-5 and JST is UTC+9.

A voluntary gratuity given for service, typically at restaurants. U.S. standard ranges from 15-25% of the pre-tax bill. Can be split among a group.

Tortoise Age estimates tortoise's age by counting shell growth rings and comparing it to species-specific maturity timelines.

Travel Budget plans travel expenses and daily spending by destination.

TV Series Marathon calculates total watch time for a TV series binge.

The process of converting a measurement from one unit to another using a conversion factor. Common in cooking (cups to grams), construction (feet to meters), and data (MB to GB).

Split shared vacation expenses fairly among group members.

Wedding Budget plans wedding budget with category allocations, regional costs, and a planning checklist.

Week Number determines ISO 8601 week number for any date, plus the US week convention and the Monday-Sunday date range.

Wind Chill & Heat Index calculates feels-like temperature using official NWS formulas.