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CLUSTER CALCULATORS-EVERYDAY-OFFERING · 27 ENTRIES · EARLIEST ENTRY 2025-05-31

Online calculator platforms

This cluster consists of online calculator platforms offering tools for finance, math, health, conversions, and everyday tasks. The dated entry history shows a single entry in April 2010, a long gap, then two entries in May 2025, one in June 2025, one in May 2026, and one in July 2026. CalcPilot leads the activity signal, followed by freeaccuratecalculator and harbor, though all show zero stars.

Entry timeline

ENTRY TIMELINE

JUN 2011: 1MAY 2025: 2JUN 2025: 1MAY 2026: 1AUG 2026: 10SEP 2026: 7OCT 2026: 5
JUN 2011OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 5 ai-built · 2 hand-coded · 13 unlabelled

Operator · 6 hobby · 2 indie · 1 commercial · 11 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01librecalculator27★todayliveindieWebsite offering a collection of free calculators for math, finance, and unit conversions with step-by-step answers.
  2. 02calculum5★7 dayslivehobbyMac app that offers hundreds of offline calculators for everyday decisions such as mortgages, road trips, paint, and baking.
  3. 03CalcPilot0★28 daysliveWeb app offering personal-finance calculators and everyday unit converters.
  4. 04financialratios0★8 days—hand-codedhobbyWebsite that teaches finance concepts, provides financial calculators, and analyzes public companies with statements, ratios, and valuation tools.
  5. 05Numberly.site0★14 dayslivehobbyWeb app offering free online calculators for everyday math, finance, construction, and practical calculations with results and formulas.
  6. 06Ai0★14 days—Web app with calculators for money, business, real estate, construction, and everyday decisions, showing formulas and worked examples.
  7. 07freeaccuratecalculator0★13 days—Online calculator platform providing tools for finance, math, health, business, and everyday calculations.
  8. 08free-web-calculators0★3 daysliveWeb app offering a set of free calculators to help people with everyday financial computations.
  9. 09masswerk-altersrechner0★21 daysliveai-builthobbyWeb app offering a German age calculator and over 20 everyday calculators for BMI, taxes, salary, loans, and more.
  10. 10calculator900★8 days—hobbyWeb app that provides authenticated users with multiple arithmetic, financial, health, and currency calculators plus saved calculation history.
  11. 11harbor0★27 daysliveindieWeb app with free calculators for debt payoff, paycheck budgeting, and cash flow, plus paid spreadsheet templates.
  12. 12Subscriptions-App0★1 mo—Calculator web app that requires a paid subscription and provides advanced calculation features to paying users.
  13. 13everyfigurecalc0★1 mo—hand-codedFree online calculator suite for time, work hours, pay, and everyday math, designed for quick personal and work calculations.
  14. 14microtools-platform0★3 molivehobbyOffers a web platform with utility calculators, AI writing tools, and blog content covering health, finance, and conversion topics.
  15. 15Metricbuddy0★1 yrabandonedliveWeb app offering a collection of daily life calculators including sleep, BMI, tip, timezone, and weight conversions.
  16. 16master_calculators0★1 yrabandoned—ai-builtWeb app offering a comprehensive set of calculators for math, finance, and everyday tasks.
  17. 17handy-calculator-suite0★1 yrabandoned—ai-builtConvenient calculator suite for everyday math, finance, and conversions.
  18. 18Loan,Mortgage ,Tip Calculator0★3 yrabandonedlivecommercialCollection of everyday calculators that compute discounts, sales tax, loans, mortgages, and tips for personal finance decisions.
  19. 19Helpmath.org - Complete Mathematical Calculator0★unknownliveai-builtWeb app that performs mathematical calculations including percentages, derivatives, compound interest, geometry, and statistics in ten languages.
  20. 20LendsightAI — Every borrowing decision, answered in seconds0★unknownliveai-builtWeb app with over 70 financial calculators for mortgages, debt, retirement, and insurance, providing clear shareable answers for finance professionals.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.