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Calculators

16 free tools · runs in your browser

Everyday calculators: loans, BMI, percentages, age, dates, statistics, fractions and a full scientific calculator. Every tool listed here is free and needs no account.

Run loans, BMI, percentages, age, date differences, statistics, fractions, and scientific calculations right in your tab. Results show their working so you can verify rather than trust, and every calculation happens locally — no data is sent anywhere.

All Calculators tools (16)

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Everyday math lives here. The basic and scientific calculators handle trig, logs, and keyboard input; the Loan/EMI, Interest, GST, Tip, Discount, and Bill Split calculators price real decisions; and BMI, Age, Percentage, and Date Difference answer the recurring personal questions. Fraction and Statistics calculators cover the classroom side with simplification and descriptive statistics. You can chain calculations by feeding one result into the next, so a multi-step financial problem stays in one place instead of bouncing between apps.

Results show their working wherever it matters. Amortization schedules, fuel-cost breakdowns, and aspect-ratio scaling appear alongside the final number so you can verify rather than trust. A typical session runs a calculation, inspects the breakdown, adjusts an input, and compares the new result against the old one. Seeing the steps makes it easy to catch a mis-entered value before it matters, and the breakdown stays visible so you can explain the result to someone else.

Key tools include the scientific calculator for trig and logs, the Loan/EMI calculator for payment schedules, the BMI and Age calculators for personal metrics, the Statistics calculator for descriptive stats, and the Date Difference calculator for spans between dates. Each targets a specific numerical job instead of one general calculator for everything, so the controls match the problem you are solving. A loan calculator asks for principal and term, while a statistics calculator asks for a data set. Because each calculator is purpose-built, the inputs and outputs match the problem instead of forcing a generic form.

Like everything on this site, calculations never leave your device. You can enter salary figures, health metrics, or loan details knowing they stay in your tab and are never sent to a server. Results and breakdowns exist only while you are on the page, and nothing is stored after you close it. A sensitive figure stays between you and your own browser.

Common uses include pricing a loan, tracking a health metric, splitting a bill, converting a fraction, and calculating the days between two dates. To get started, open the calculator that matches your question, enter your values, and read the result along with its working. The related guides link back to two or three tools from this category for worked examples, so you can follow a complete calculation before you try your own numbers. Nothing you enter is stored on a server, so a sensitive figure stays between you and your own browser.

All 16 of these run client-side in your browser: nothing you paste or drop here is uploaded, and no tool in this category contacts a third-party service. Results are copied or saved straight from the page. For worked examples, the related guides above each link back to 2–3 tools from this category.