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Featured tools
Useful calculators and tools, free, fast, and ready in seconds.
AI Token Calculator
Estimate token counts for prompts, responses, and AI workflows before sending them to an API.
API Cost Calculator
Estimate API usage costs from requests, tokens, pricing, and monthly volume.
EMI Calculator
Calculate monthly EMI, total interest, and total repayment for a loan in seconds.
Latest articles
Simple explanations, formulas, and practical guides to help you understand the numbers behind every calculation.
Canada Income Tax Explained: Federal, Provincial, and Take-Home Pay Basics
How federal tax, provincial tax, marginal rates, credits, and payroll deductions combine to produce a Canadian take-home figure that varies by province, using 2026 CRA figures.
Crypto Profit Calculator: How to Calculate Real Gains After Fees and Losses
Why the simple sell-minus-buy formula misses most of the answer for crypto profit: fees, multiple buys, partial sells, currency conversion, and the break-even price that actually matters.
How Much Sleep Do You Actually Need?
Learn why the 8-hour sleep rule is only a starting point, how sleep cycles and sleep debt work, and how to plan better bedtimes around real life.
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