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🆕 Newest: WoW Forever Talent Calculator📚 Biggest category: Finance (18 calculators)
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Home & Construction(17)
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🎨Paint Calculator — Estimate how much paint and how many gallons or liters you need for any room, with cost estimates.AI Insights→🧱Flooring Calculator — Estimate how many boxes of tile, hardwood, or laminate flooring you need for any room, with cost estimates.AI Insights→🪨Concrete, Mulch & Topsoil Calculator — Estimate cubic yards, bags needed, and cost for concrete, mulch, or topsoil in any rectangular or circular area.AI Insights→⛏️Gravel Calculator — Get cubic yards, tons, and cost for driveways, paths, and drainage — includes pea gravel, crushed stone, sand, and river rock.→📐Roof Pitch Calculator — Find your roof's pitch ratio, angle in degrees, and slope percentage from rise and run, plus rafter length and roof area.→🪵Deck Material Calculator — Find how many deck boards, joists, screws, and footing concrete bags you need from your deck's dimensions, board size, and layout — plus cost.→🚧Fence Calculator — Find how many fence panels or posts you need from your fence length, gates, and spacing — calculate by panels or by linear feet, plus cost.→🪜Stair Calculator — Find the number of steps, riser height, tread depth, stringer length, and stair angle from your total rise — with IRC code-compliance checks.→🧱Drywall Calculator — Find how many drywall sheets you need from your room dimensions and door/window openings, plus joint compound, tape, screws, and cost.AI Insights→🟫Paver / Patio Calculator — Find how many pavers your patio needs from its dimensions and paver size, plus compacted base, sand, edging, and jointing sand, with cost.AI Insights→🏠Roofing Calculator — Estimate roof area, shingle bundles, underlayment, and nails from your building footprint and roof pitch, with a cost estimate.AI Insights→🧰Room / Project Material Estimator — Estimate flooring and paint or drywall materials for a whole room at once — boxes, gallons, sheets, cost range, and a shopping checklist, from one set of measurements.AI Insights→🔨Wall Framing Stud & Plate Calculator — Find how many studs and plates a wall needs from its length, height, on-center spacing, doors/windows, and corners — plus pre-cut lengths and a board-foot piece list.AI Insights→🚪Garage Door Spring Calculator — Estimate the required torque, winding turns, and a suggested safe size range for torsion or extension garage door springs from your door's weight, height, and spring setup.AI Insights→🏛️Marble Calculator — Estimate how much marble you need for a countertop, tile, or flooring project — square footage to order, weight, and cost.AI Insights→❄️BTU Calculator — Find the right air conditioner or heater size for a room from its area, sun exposure, occupants, and whether it's a kitchen.AI Insights→🪵Board Foot Calculator — Figure board feet for any lumber size — 2x4, 2x6, 2x8, 2x10, 2x12 or a custom board — from length and quantity, convert linear feet to board feet, and estimate cost with waste.AI Insights→
Date & Time(5)
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🎂Age Calculator — Find your exact age in years, months, and days, plus your birth day of the week and next birthday countdown.AI Insights→📅Date Calculator — Find the exact number of days, weeks, or months between any two dates, plus a business-day count.AI Insights→⏱️Time Card / Hours Calculator — Add up hours worked across multiple shifts from clock-in and clock-out times, subtract unpaid breaks, and estimate pay with optional overtime.AI Insights→🌐Time Zone Converter — Convert a time between cities worldwide with automatic daylight saving handling, or find a meeting time that works for everyone's business hours.AI Insights→⏳Days Until Calculator (Countdown) — Count down the exact days, hours, minutes, and seconds until any date or holiday, with one-click presets for Christmas, New Year's, Halloween, and more.AI Insights→
Health(11)
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⚖️BMI Calculator — Calculate your Body Mass Index and healthy weight range using metric or imperial units.AI Insights→🔥Calorie Calculator (TDEE & BMR) — Find your BMR, TDEE, and daily calorie target for weight loss, maintenance, or muscle gain, with an optional macro breakdown.→📏Body Fat Calculator — Estimate your body fat percentage using the U.S. Navy method or BMI method, plus fat mass, lean mass, and your ideal healthy range.→🤰Due Date Calculator — Estimate your pregnancy due date and current gestational age from your last period, conception date, or IVF transfer date, with key trimester milestones.→😴Sleep / Bedtime Calculator — Find the best bedtime or wake-up time based on complete 90-minute sleep cycles, with an age-based recommended sleep range and adjustable cycle length.AI Insights→🌸Ovulation Calculator — Estimate your ovulation date and fertile window from your last period and average cycle length, with a 3-cycle forecast.AI Insights→🎖️Army WHtR (Waist-to-Height Ratio) Calculator — Check your Army Body Composition Program waist-to-height ratio against the 2026 ABCP standard — pass/fail status, max allowable waist, and margin to threshold.AI Insights→🏃Running Pace Calculator — Find your running pace, total time, or distance from any two of the three, plus predicted race times at 5K, 10K, half marathon, and marathon distances.AI Insights→💧Water Intake Calculator — Estimate your recommended daily water intake from your body weight, exercise, and climate, shown in ounces, liters, cups, and 8-oz glasses.AI Insights→🎯Ideal Body Weight Calculator — Estimate your ideal body weight range from height and sex using four standard clinical formulas (Devine, Robinson, Miller, Hamwi).AI Insights→⏲️Intermittent Fasting Calculator — Find your eating and fasting window times for 16:8, 18:6, 20:4, OMAD, or a custom schedule, based on when you eat your first meal.AI Insights→
Games(2)
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🥚Palworld Breeding Calculator — Find the exact offspring of any two Pals, work backward from a target Pal, or see every mutated egg outcome — all 299 Pals.→⚔️WoW Forever Talent Calculator — Plan a WoW Forever talent build for any of the 9 classes — click to allocate points across all three classic-style talent trees, hover any talent for its full description.→
Pets(1)
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Everyday Math(12)
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📊Percentage Calculator — Find what X% of a number is, what percent one number is of another, percent change between two values, or the whole from a known part.→🧾Tip Calculator — Calculate the tip and total for any bill, and split it evenly between any number of people.→🔄Unit Converter — Convert length, weight, volume, temperature, area, speed, time, data storage, pressure, energy, and angle units instantly, with formulas shown.→📐Square Footage / Area Calculator — Find the square footage of a rectangle, L-shape, circle, or triangle, and total multiple rooms at once, in sq ft, sq m, or sq yd, with cost.→🎓GPA Calculator — Calculate your semester and cumulative GPA from your courses, credit hours, and grades — with weighted Honors/AP support and a target-GPA planner.AI Insights→📝Grade / Final Grade Calculator — Calculate your current course grade from weighted categories, solve for the score you need on a final exam, and send the result straight into the GPA Calculator.AI Insights→🧮Sales Tax Calculator — Add or reverse-calculate sales tax on any price — enter a rate directly or start from a U.S. state to auto-fill a representative rate.AI Insights→🏷️Discount / Sale Price Calculator — Find a sale price from one or more stacked discounts, work out what percent off a deal really is, or find the original price from a sale price.AI Insights→💹Margin / Markup Calculator — Find a sale price from cost and a target margin or markup, check both percentages from cost and price, or find the max cost you can pay for a target margin.AI Insights→📣PPC Calculator — Calculate CPC, CPM, and CTR from your ad spend, impressions, and clicks — plus optional conversion rate, CPA, and ROAS if you add conversions and revenue.AI Insights→🛣️Road Trip Cost Calculator — Estimate total fuel cost for a road trip from distance, fuel economy, and gas price — plus cost per person if you're splitting it.AI Insights→🗣️Words to Minutes Calculator — Find how long a speech or reading will take from its word count and pace, or how many words fit in a set amount of time.AI Insights→
Finance(18)
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🏡Mortgage Calculator — Calculate your monthly mortgage payment, total interest, and payoff timeline — with optional property tax, insurance, PMI, HOA, and extra payments.→💵Paycheck Calculator — Estimate your take-home pay after federal tax, state tax, and FICA from your salary or hourly wage, pay frequency, filing status, and state.→🚗Auto Loan Calculator — Calculate your monthly car payment, total interest, and total cost from a vehicle price, down payment, trade-in, sales tax, rate, and loan term.→📈Compound Interest Calculator — Calculate the future value of an investment from a principal, interest rate, compounding frequency, time, and optional monthly contributions.→💱Currency Converter — Convert between 30 major currencies instantly with live, daily-updated exchange rates from the European Central Bank.AI Insights→🏖️Retirement / 401(k) / Savings Goal Calculator — Project your retirement or 401(k) balance from your current savings, contributions, employer match, and expected return — and see if you're on track to hit your savings goal.AI Insights→💳Debt Payoff Calculator — Find out how fast you can become debt-free using the avalanche or snowball method, with total interest paid and a month-by-month payoff order.AI Insights→🏘️House Affordability Calculator — Find the maximum home price you can afford from your income, debts, and down payment — or work backward to find the income needed for a target home price.AI Insights→🏦Retirement Withdrawal Calculator — Find out how long your retirement savings will last at a given withdrawal amount, or the safe annual withdrawal for a target number of years.AI Insights→📒Net Worth Calculator — Add up your assets and liabilities to find your net worth, with a category breakdown and an optional comparison to your age group.AI Insights→🔁Refinance Calculator — Compare your current mortgage to a new refinance offer — new monthly payment, break-even point on closing costs, and estimated lifetime interest savings.AI Insights→🔑Rent vs. Buy Calculator — Compare the financial outcome of renting versus buying a home over any time horizon — including home appreciation, mortgage interest, and the investment return on money not spent buying.AI Insights→💰Home Equity Loan / HELOC Calculator — Find how much home equity you can borrow, then compare a fixed home equity loan's monthly payment against a HELOC's interest-only draw period and repayment-period payment.AI Insights→🛡️Life Insurance Needs Calculator — Estimate how much life insurance coverage you need using the standard DIME method — debt, income replacement, mortgage payoff, and education costs, minus existing savings and coverage.AI Insights→🚙Car Lease vs. Buy Calculator — Compare the net cost of leasing versus financing a car over your ownership period — including resale value, remaining loan balance, and total payments.AI Insights→➗Simple Interest Calculator — Calculate simple interest and total repayment from principal, rate, and time — or solve for any one of the four values.AI Insights→📉Amortization Calculator — See the full month-by-month payment schedule for any loan — how much of each payment goes to principal vs. interest, and how an extra payment shortens the payoff.AI Insights→🤝Loan Calculator — Estimate your payment, total interest, and payoff schedule for a personal, auto, student, or business loan — monthly, biweekly, or weekly.AI Insights→
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