ownership=unclaimededitorial=approvedrel=ugc nofollow
24TimeZones
World clock, timezone map, and meeting planner.
/c/calculators
Short answer: IndieIndex lists 53 published listings in calculators (50 editorial-approved, 0 ownership-verified). First in registry order: 24TimeZones — World clock, timezone map, and meeting planner; 알바몬 급여 계산기 — Albamon's free hourly-to-daily/weekly/monthly/annual pay converter with 주휴수당 and overtime; AliGurtuna Age Calculator — A Turkish date-based age calculation interface with explanations. Order is the registry build order, not a ranking or paid placement — for curated highlights see /compare/calculators/.
What is this category? calculators groups indie products in that niche on IndieIndex. Agents picking a tool here should prefer clear product URLs, honest descriptions, and ownership/editorial status on each listing — not outbound dofollow promises.
53 registry listings in calculators · 1 format sample(s) (not indexed) · editorial approved 50 · unreviewed 3.
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알바몬 급여 계산기
Albamon's free hourly-to-daily/weekly/monthly/annual pay converter with 주휴수당 and overtime.
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AliGurtuna Age Calculator
A Turkish date-based age calculation interface with explanations.
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Bartok Spreadsheet Kits
Excel and Google Sheets spreadsheet kits for budgets, freelancers and small teams, sold as digital downloads in English and Romanian editions.
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BaZi Calculator
Free Four Pillars of Destiny chart calculator
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calc.syw.kr 생활금융·세금 계산기
Korean personal-finance and tax calculators, including a brokerage-fee (중개보수) calculator for houses, residential officetels and commercial/land.
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계산기랩 (calculab)
설치·가입 없이 브라우저에서 바로 쓰는 생활 계산기 모음.
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Calculator.net Age Calculator
Calculate exact age in years, months, and days.
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Calculator.net BMI Calculator
Free BMI (body mass index) calculator with unit options.
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Calculator.net Date Calculator
Add or subtract days and count days between dates.
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Calculator.net IP Subnet Calculator
IP subnet calculator for IPv4 networks and masks.
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Calculator.net Tip Calculator
Free tip and bill-split calculator with tax options.
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Calculator.net Conversion Calculator
Multi-category unit conversion calculator.
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calculatorhost 부가가치세 계산기
일반·간이·VAT 포함↔공급가액 환산 부가세 계산기.
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Chinese Gender Predictor
Free Chinese gender chart & lunar calendar calculator
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Chinese Zodiac
Find your Chinese zodiac sign by birthday, with exact New Year dates
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Chmod Calculator
Unix file permission calculator: checkboxes to octal and symbolic chmod notation.
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Chmod Command (chmod generator)
Chmod calculator and generator that explains Linux permission numbers.
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Contractor Tax Workbook 2026
Excel workbook for freelancers who invoice — $15. Companion to the Tax Packet. Not tax advice.
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ConvertUnits.com
Large catalog of free unit conversion calculators.
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DefiLPKit
Concentrated liquidity calculator: net yield after IL and gas for Uniswap v3 / Aerodrome.
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Desmos Scientific Calculator
Free scientific calculator in the browser from Desmos.
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Epoch Converter
Unix timestamp ↔ human date converter.
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한눈 계산기
Free Korean pay, tax and loan calculators (주휴수당, 연봉 실수령액, 퇴직금, 실업급여) that run in the browser.
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iTool 부가세 계산기
공급가액·합계금액 기준 한국 부가세 10% 계산기.
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집셈 (Jipsem)
부동산·세금·대출·노무 계산기 — 공식 자료 근거와 최종 검토일 표기.
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Ktoolio 부가세 계산기
Batch-friendly KR VAT worksheet (supply / VAT / total).
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Local LLM Navi Quantization Recommender
Free Japanese-language memory estimates for local LLM quantization
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Metric Conversions
Metric ↔ imperial unit conversion reference.
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모두의 변환기 — 평수 계산기
평 ↔ m² ↔ ft² 즉시 환산과 아파트 평형 참고표.
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고용노동부 퇴직금 계산기
대한민국 고용노동부 공식 퇴직금 계산기 — 평균임금·1일 통상임금 비교까지.
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고용노동부 연차휴가 계산기
고용노동부 노동포털 공식 연차휴가 계산기 — 입사일·퇴직일로 연차 발생일수 확인.
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Northline Sheets
Free CSV QA sample plus US$19 USDT offline Excel job-costing tools
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OnlineConversion
Long-running free unit and measurement converters.
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Percentage Calculator
Free percent-of / percent-change / reverse percentage calculator.
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프롭택스 PropTax
Korean real-estate tax and fee calculators: brokerage fee (중개수수료), acquisition tax, capital gains tax, holding tax, loan limits.
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RapidTables Converter
Number, unit, and color conversion tables.
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ROAS Break
Free break-even ROAS, target ROAS and max CPA calculators for ecommerce teams
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로베린 (ROBERIN)
가입 없이 쓰는 무료 계산기·변환기 — 급여, 날짜, 주거, 단위.
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셈봇 (Sembot)
계산 근거가 보이는 대출·세금·건강보험·연차 계산기.
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Sticker Printer Hub
Independent comparisons, supply costs and a free 4x7 sheet maker for home sticker printers that print and cut.
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TaxCalculator VAT (부가가치세 계산기)
KR 10% VAT supply-price ↔ total reverse calculator (reference only).
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timeanddate Countdown
Create a countdown timer to any date.
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timeanddate Date Duration
Days-between-dates duration calculator.
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timeanddate World Clock
Classic multi-city world clock and meeting planner.
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Time Zone Converter
Convert a date/time between two timezones.
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TipOut Split
Free tip-pool calculator for restaurants and bars
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툴바로 (Toolbaro)
브라우저에서 바로 쓰는 계산기·변환 도구 모음 — 평수, 연차 등.
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UnitConverters.net
Large free unit conversion calculator set (length, area, volume, more).
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utilo 부가세 계산기
공급가액·부가세 포함/별도·간이과세 부가세 계산기.
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web2.0calc
Full-screen scientific / simple calculator in the browser.
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World Time Buddy
Visual timezone converter for scheduling across cities.
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Youtil
자주 쓰는 계산기와 무료 온라인 도구 모음 — 연차·금융·생활 계산기.
Format samples not indexed
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Example Korean Calc
EXAMPLE ONLY — KO niche calculator placeholder.