Free Online Calculators and Tools for Dates, Tax, Planning, and Productivity

Fast, accurate tools for everyday calculations — no signup, no ads, privacy first.

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Date & Time

Days Between Dates Calculator

Calculate the exact number of days, weeks, and months between any two dates. Includes business day counting.

Countdown Timer & Widget

Create live countdown timers for events with embeddable HTML widgets for your website.

Money & Tax (Canada)

Canada Salary & Tax Calculator

Calculate take-home pay after federal and provincial taxes, CPP, EI, RRSP savings. All 13 provinces, 2026 rates.

Planning & Productivity

Word Counter & Readability

Count words, characters, sentences. Get reading time and Flesch readability scores instantly.

Percentage Calculator

Multi-mode calculator: find X% of Y, percentage change, reverse percentages, and more.

Who Is This For?

Everyday users and planners — whether you're counting down days until a vacation, figuring out how many business days are between two dates, or calculating percentages for a budget, infinit5 gives you quick, accurate answers without the hassle.

Canadians looking for accurate tax estimates — our salary calculator is built specifically for Canada with up-to-date 2026 federal and provincial tax brackets, CPP, EI, and RRSP deduction support for all 13 provinces and territories.

What makes infinit5 different? Simple, clean UI with no clutter. All calculations happen in your browser — we don't store your data. No signup, no ads, no tracking. Just tools that work. Built by an IT professional in Toronto who believes useful tools should be free and accessible to everyone.