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BMI Calculator

Estimate your Body Mass Index. This is a general estimate, not medical advice.

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BMI categories: below 18.5 underweight · 18.5–24.9 normal · 25–29.9 overweight · 30+ obese. BMI doesn't account for muscle mass, bone density, or body composition — it's a general screening estimate only.

Age Calculator

Find your exact age in years, months, and days.

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Date Difference Calculator

Find the days, weeks, and months between two dates.

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Tip Calculator

Work out the tip and split the bill between people.

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Discount Calculator

Find the sale price and how much you save.

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Compound Interest Calculator

See how an amount grows over time with compound interest.

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Simple Interest Calculator

Calculate interest that doesn't compound.

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