Calculator for Content Creator
116 calculator tools hand-picked for Content Creator.
-
24-Point Solver & Game
24-point solver and game — enter 4 numbers and get every solution instantly, or play random hands against the clock.
-
Age Calculator
Calculate your exact age — years, months, days, hours. Compare two dates or count to a future date.
-
AI Token Counter
AI token counter — estimate token count for GPT / Claude / Gemini, with per-model cost calculator (2026 pricing).
-
Airline Luggage Allowance Checker
Airline luggage allowance — 50+ carriers' carry-on / checked baggage rules with size, weight, and excess fee.
-
Annuity Calculator
Annuity & retirement calculator — see monthly income from your savings, accumulation + payout phases, multiple scenarios.
-
Aspect Ratio Calculator
Calculate aspect ratio — fix any 1 of [width, height, ratio], get the other two.
-
Baker's Percentage Calculator
Flour = 100%. Read hydration, salt and yeast as percentages, or scale a recipe to any flour weight — browser-only
-
Baseball Batting Average Calculator
AVG, OBP, SLG and OPS from one stat line — three-decimal display like .300, walks kept out of at bats — browser-only
-
BaZi (Four Pillars) Calculator
BaZi (Four Pillars) calculator — Chinese metaphysics birth chart with 8 characters, five elements analysis.
-
Birthday Paradox Calculator
Birthday paradox calculator — see the probability of shared birthdays in a group of N people, visualized step by step.
-
BMR Calculator
BMR calculator — basal metabolic rate by Mifflin-St Jeor and Harris-Benedict (compared side-by-side).
-
Body Fat Calculator
Body fat % calculator — 4 formulas (US Navy / BMI-based / YMCA / Jackson-Pollock) with body shape visualization.
-
BPM Tap Counter
BPM tap counter — tap the spacebar to the beat, instantly get tempo with running average, find your song's tempo for DJ / dance / metronome.
-
Calorie Calculator
Calorie calculator — daily calorie needs (BMR + TDEE), weight loss/gain targets, macro breakdown.
-
Calorie Deficit Calculator
Pick a daily calorie deficit, enter your current and goal weight, and see how many weeks it takes and the date you'd hit your target — with a safety check, browser-only
-
Candle Wax Calculator
Volume × fill rate × wax density = grams of wax, plus fragrance oil at your load percent — soy, paraffin, beeswax, mL or fl oz — browser-only
-
Car Loan Calculator with Prepayment
Car loan calculator with prepayment — bank vs 4S dealer financing comparison, equal-installment / equal-principal / balloon plans, prepayment-savings simulation.
-
Child Adult-Height Predictor
Child adult-height predictor — 3 scientific methods (mid-parental / Khamis-Roche / CDC growth percentile), with confidence range + growth chart.
-
China Child Vaccine Schedule (0-6y)
China 0-6y child immunization schedule — 11 free + 12 paid vaccines, generates personalized calendar from baby's birthdate, with per-dose reminders.
-
China Company Income Tax Calculator
China company income tax calculator — small/micro (2.5%/5%/25%) vs general taxpayer, R&D super-deduction, loss carry-forward 5 years.
-
China Drunk-Driving Penalty Reference
China drunk-driving penalty reference — BAC threshold (20/80), license suspension/revocation, criminal charges, insurance impact, by scenario.
-
China Unemployment Benefits Calculator
China unemployment benefits calculator — monthly amount + total months by city + insurance years, per 2026 policy.
-
China Gaokao Major Recommender (2026, 3+1+2 New Gaokao)
China gaokao major recommender 2026 — filter by score range + subject combo (3+1+2) + interest + employment outlook, 150+ undergrad majors across 12 disciplines.
-
China Housing Provident Fund Loan Calculator
China housing-provident-fund loan calculator — single + dual contributor max loan, monthly payment (equal-principal + equal-installment), top-30 cities 2025 caps.
-
Chinese Lunar Almanac (Huangli)
Chinese lunar almanac (huangli) — daily 宜/忌 advice, 24 solar terms, 干支/生肖, auspicious hours, any date 1900-2100.
-
China Marriage Betrothal Reference
China marriage betrothal reference — 30+ provinces' typical betrothal money + dowry + 3-gold/5-gold averages (2024-2026 public data).
-
China Maternity Benefits Calculator
China maternity benefits calculator — leave days by province (98 base + extension 30-180 days), maternity allowance (avg-wage × leave-days / 30), medical reimbursement, 2025 policy.
-
Chinese Numeric Converter
Arabic ⇄ Chinese number — simple (一二三), formal (壹貳參), or amount (金额大写 with 元角分).
-
China Pension Calculator
China pension calculator — basic + personal-account + transitional pension formulas (2024 reform), by province average wage, contribution years, base, with 2055 projection.
-
China Personal Income Tax — Special Deduction Simulator
China personal income tax special deduction simulator — 7 categories (kids/elder/mortgage/rent/education/medical/infant), year-end reconciliation included.
-
China Retirement Age Calculator
China retirement age calculator (2025 reform) — exact retirement date by birth year + gender + worker category, per Sept 2024 NPC reform.
-
Chinese Stroke Counter
Chinese character stroke counter — count strokes for any hanzi, traditional or simplified.
-
China Three-Child Birth Subsidy Policy Finder
China three-child birth subsidy policy finder — per province / city one-time + monthly + housing + education subsidies (2024-2025 latest).
-
China Used-Car Price Estimator
China used-car price estimator — depreciation curve by brand tier + age + mileage + condition, plus 4S trade-in vs private vs auction net comparison.
-
Chinese Zodiac Sign Checker (Sheng Xiao)
Chinese zodiac checker — your animal sign, element, compatibility, lucky numbers/colors by birth year.
-
Clothing Size Converter
US ⇄ UK ⇄ EU ⇄ CN ⇄ S–XXL for men & women — tops, trousers, dresses, suits — with the body measurements behind every size — browser-only
-
Coffee Ratio Calculator
Coffee-to-water ratio calculator — type 1:16, pick a brew method, get exact grams of coffee and water for any batch
-
Color Mixer
Color mixer — blend any two colors with adjustable ratio, RGB/HSL/LAB color space, predict the result and copy hex.
-
Compound Interest Calculator
Compound interest calculator — see how money grows over time, with monthly contributions, charts, and breakdown.
-
Western Zodiac Calculator (Sun Sign)
Western zodiac calculator — your sign, element, ruling planet, compatibility, daily traits.
-
Cooking Unit Converter
Cooking unit converter — tsp / tbsp / cup / oz / ml / g for 100+ common ingredients with density.
-
Countdown Timer
Countdown timer — to any date and event, with live ticking down to seconds.
-
Currency Converter
Currency converter — 50+ currencies with offline reference rates, convert without internet, source data updated each release.
-
Cycling FTP Calculator
20-min power × 0.95 = FTP — Coggan 7 power zones, watts and W/kg, one-click copy — runs in your browser
-
Depth of Field Calculator
Near limit, far limit, total depth of field & hyperfocal distance from your sensor, focal length, aperture and focus distance — browser-only
-
Dice Probability Calculator
Exact odds for any NdS roll: full sum distribution, expected value, and P(sum = / ≥ / ≤ X), counted not simulated
-
Expense Tracker
Expense tracker — log spend, categorize, see monthly totals, all in your browser.
-
Exposure Value (EV) Calculator
EV = log2(N²/t) from aperture + shutter + ISO, plus equivalent-exposure solving and a Sunny-16 reference — browser-only
-
FFMI Calculator
Fat-Free Mass Index from weight, body-fat and height, with normalized FFMI and the natural-limit bands, 100% in your browser
-
Fish Tank Calculator
Fish tank size calculator — input fish species and count, get the minimum tank gallons/liters needed and stocking density warnings.
-
Fuel Cost Calculator
Trip fuel cost from distance + economy + price — round trip, per-person split, L/100km ⇄ MPG — browser-only.
-
2048 Game (Slide, Merge, Reach 2048)
2048 game — slide tiles, combine numbers, reach 2048. Pure browser, no ads, your high score saved locally.
-
Golf Handicap Calculator
Score differential and WHS Handicap Index from your rounds, best-N averaged ×0.96, single-round quick mode, one-click copy, browser-only
-
Heart Rate Zones Calculator
Heart rate zones calculator — max HR (4 formulas) + 5 training zones (recovery/aerobic/tempo/threshold/VO2max), with workout examples.
-
China Income Tax Calculator
China personal income tax calculator — monthly, annual, with 5 insurance + 1 fund deductions.
-
Intermittent Fasting Tracker — 16:8 / OMAD / 5:2 / 36h Timer with Stages
Intermittent fasting tracker — 16:8 / 18:6 / 20:4 / OMAD / 5:2 / 36h timer with stages and history log.
-
K/D Ratio Calculator
Kills ÷ deaths, plus KDA with assists and the kills you need to hit a target K/D — browser-only, share-by-link
-
Kids Allowance Calculator
Kids allowance calculator — age-appropriate weekly/monthly amount with chore-based breakdown, savings goal sandbox.
-
Loan Comparison Calculator
Loan comparison calculator — compare equal-payment vs equal-principal, multiple loans side by side, total interest breakdown.
-
Loan Prepayment Calculator
Loan prepayment calculator — see how much interest you save by paying extra each month or one-time, with breakeven analysis.
-
Lunar Calendar Converter (Chinese Nongli)
Gregorian ⇄ Chinese Lunar (Nongli) calendar — bi-directional, accurate 1900-2100.
-
Macro Nutrient Calculator
Macro nutrient calculator — TDEE + protein/fat/carb split for cut/maintain/bulk goals, with 3 split presets (high-protein/keto/balanced) and meal example.
-
Marathon Time Predictor
Marathon time predictor — input 5k/10k/half time, get full marathon prediction via 3 formulas (Riegel/Cameron/VDOT), with pace zones and weekly mileage advice.
-
MBTI Quick Test (28 Questions, 16 Personality Types)
MBTI quick test — 28 questions, 5 minutes, get your 4-letter type with detailed reading.
-
Meat Doneness Temperature Chart
Pick a meat and a doneness, get the internal cooking temperature in °F and °C, with the USDA safe minimum and the chef target side by side
-
Meeting Cost Calculator
Meeting cost calculator — see how much that meeting is costing in real-time, with team salary data and overhead multiplier.
-
Megapixel Calculator
Width × height → megapixels, aspect ratio, file size, and max print size at any DPI. Reverse it too. 100% in your browser.
-
Moon Phase Calculator
Pick any date, see the moon phase, illumination percentage and moon age, plus this month's principal phases, all in your browser
-
Mortgage Calculator
Mortgage calculator — monthly payment, total interest, amortization schedule, early payoff scenarios.
-
Music Interval Calculator
Two notes in, the interval out: name, semitones, frequency ratio and cents, plus a reverse build from root plus interval
-
Note Frequency Calculator
Note name ⇄ frequency (Hz) — A4 = 440/432/442, MIDI number, cents off — browser-only
-
China Overtime Pay Calculator
China overtime pay calculator — workday 1.5×, weekend 2×, statutory holiday 3× per Labor Law Art. 44, with 31 provincial minimum-wage tables.
-
Ovulation & Fertility Tracker
Ovulation & fertility tracker — predict next 6 months of fertile windows, track BBT, find best conception days.
-
Passer Rating Calculator
NFL quarterback passer rating from completions, attempts, yards, TDs and INTs — with the NCAA college formula and a perfect-158.3 check — browser only
-
Periodic Table
Interactive periodic table — 118 elements, properties, electron config, search.
-
Pet Age Calculator
Pet age calculator — accurate dog/cat human-age equivalent, with breed size adjustment, lifespan stages.
-
Pet Food Calculator
Pet food calculator — RER + activity factor for dogs and cats, exact daily grams based on weight, age, neuter status, and kibble kcal/100g.
-
Pizza Dough Calculator
Baker's percentage pizza dough — flour, water, salt, yeast, oil by weight — browser-only
-
Pomodoro Timer
Pomodoro timer — 25/5 classic, plus 50/10 and 90/15 long-focus modes, with sound, browser tab title, daily stats.
-
Power-to-Weight Ratio Calculator
Power ÷ weight in W/kg, hp/ton and kW/kg — cars and cycling, forward and reverse, browser-only
-
Pregnancy Due Date Calculator
Pregnancy due date calculator — track weeks, trimester, baby development by week.
-
China Property Fee Calculator
Property fee calculator — calculate Chinese residential management fees, garage, heating, elevator, with regional rate references.
-
Protein Intake Calculator
Protein intake calculator — daily grams by body weight, activity, goal (cut/maintain/bulk), per ISSN 2017 guidelines.
-
Random Number Generator
Generate cryptographically-secure random integers — single or batch, with/without duplicates — browser-only
-
Recipe Scaler
Recipe scaler — paste any recipe, change servings, get all ingredient amounts auto-scaled. Handles fractions and unit conversion.
-
Ring Size Converter
US ⇄ UK ⇄ EU ⇄ JP ⇄ CN ⇄ inner circumference & diameter (mm) — type any one, get every size at once — browser-only
-
Running Pace Calculator
Running pace calculator — convert between pace / time / distance, predict 5K/10K/half/full marathon from one race.
-
Safe Period & Ovulation Calculator
Period & ovulation calculator — predict next period, fertile window, safe days (based on calendar method).
-
Savings Goal Tracker
Savings goal tracker — set a target (down payment, trip, emergency fund), see weekly/monthly contribution and projected date.
-
Screen Time Budget
Screen time budget — track and visualize daily screen time across phone/tablet/PC, with age-based recommendations from WHO/AAP.
-
Chinese Zodiac Compatibility (Shengxiao Match)
Chinese zodiac compatibility — match two people by their zodiac signs, 144 pair combinations with reading.
-
Shoe Size Converter
US ⇄ UK ⇄ EU ⇄ CN ⇄ JP + foot length (cm/in) — men, women, kids — browser-only
-
Sleep Cycle Calculator
Sleep cycle calculator — 90-minute REM cycles. Find best bedtime if you must wake at X, or best wake time if you sleep at Y.
-
Sleep Debt Calculator
Sleep debt calculator — track this week's sleep hours, see your accumulated debt, get a realistic recovery plan based on research.
-
Stair Climbing Calorie Calculator
Stair climbing calorie calculator — calculate kcal burned by floors climbed, with METs-based formula.
-
Steps to Distance Calculator
Steps ⇄ distance from your stride: type a stride or estimate it from height, see km or miles, and find how far 10,000 steps go — browser-only
-
Strength 1RM & Training Program
Strength 1RM calculator + training program — 6 formulas (Epley/Brzycki/Lombardi/O'Conner/Lander/Mayhew), %1RM table, Wendler 5/3/1 + Sheiko + Madcow templates.
-
Sudoku Generator
Sudoku generator and solver — 4 difficulties (easy / medium / hard / expert), unique-solution guaranteed, play in the browser or print as PDF.
-
Swim Pace Calculator
Solve any one of pace, time, or distance from the other two, with per-100 splits, pool-length lap time, and metre to yard conversion, all in your browser
-
TDEE Calculator
TDEE calculator — BMR × activity factor, with cut/bulk calorie targets and projected weekly weight change.
-
Tempo Delay Calculator
Turn any BPM into a full delay-time table — milliseconds and Hz for every note value, plus dotted and triplet. Built for mixing and producing.
-
Tip Calculator
Tip & split calculator — calculate tip by percentage, split bill among friends, round-up options, multi-currency.
-
Tip & Split Bill Calculator
Tip percent, grand total, per-person share, pre-tax or post-tax, round-up split, browser-only
-
Trip Cost Splitter
Split group trip, dinner & shared-flat costs — track who paid what, who joined which expense, and get the fewest transfers to settle up. 100% in your browser.
-
Typing Speed Test
Typing speed test — WPM, accuracy, real-time mistakes, English + Chinese pinyin modes.
-
Unit Price Comparison Calculator
Compare price per 100 g, per litre or per piece across packs — normalize g⇄kg and mL⇄L, flag the cheapest, copy the result — browser-only
-
China Vehicle Purchase Tax Calculator
China vehicle purchase tax calculator — 10% rate on tax-exclusive price, with NEV exemption rules, plus on-road cost breakdown.
-
Video Bitrate Calculator
File size = bitrate × duration ÷ 8 — solve any one of bitrate, length or size, add audio, copy in one click — browser-only
-
Water Intake Calculator
Water intake calculator — daily water target by body weight, activity, climate. With drink-log to track today's progress.
-
Wedding Budget Planner
Wedding budget planner — itemized cost calculator with regional benchmarks for venue, photography, catering, etc.
-
Weight Loss Tracker & Calorie Deficit Calculator
Weight loss tracker — set target, log daily weight, see trend, project goal date with real calorie math.
-
Weight Training Tracker — 1RM Calculator & Strength Progress Log
Weight training tracker — log compound lifts (squat/bench/deadlift/OHP), track 1RM via Epley formula, see strength gains by week.
-
Wilks Score Calculator
Normalise a powerlifting total across bodyweights with the classic 1994 Wilks coefficient — kg or lb, instant score, browser-only
-
Win Rate Calculator
Wins ÷ total games × 100% with draws, plus the win streak you need to hit a target rate and how many losses you can afford, browser-only
-
Words Per Minute Calculator
Solve any of words, minutes, and WPM — paste a speech to estimate read-aloud time, with speaking-rate presets and one-click copy — browser-only
-
Work Anniversary Calculator
Work tenure calculator — service years, annual leave entitlement (China), retirement countdown.