Calculators

Quick calculators for percentages, dates, units, and everyday math. This category has 17 Uddatak tools that run directly in your browser — no software to install.

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Percentage Calculator

Calculate percentages, percentage change, and percentage of a total instantly.

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Age Calculator

Find your exact age in years, months, and days from a birth date.

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Date Difference Calculator

Calculate the exact number of days, months, and years between two dates.

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Time Duration Calculator

Calculate the elapsed time between two clock times, or add/subtract a duration.

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Scientific Calculator

A full scientific calculator with trigonometry, logarithms, and exponents, right in your browser.

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Fraction Calculator

Add, subtract, multiply, or divide fractions, with the result automatically simplified.

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Ratio & Proportion Calculator

Simplify a ratio or solve for a missing value in a proportion.

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Average Calculator

Calculate the mean, median, and mode of a list of numbers.

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Discount Calculator

Calculate the final price after a percentage discount, and how much you saved.

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Unit Converter

Convert between units of length, weight, volume, temperature, and more.

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Aspect Ratio Calculator

Calculate a proportional width or height from an aspect ratio, or find the ratio itself.

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Tip & Bill Splitter

Calculate a tip amount and split a bill evenly among any number of people.

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Working Days Calculator

Count the number of business days between two dates, excluding weekends.

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Timezone Converter

Convert a time from one timezone to another, or compare times across cities.

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GPA Calculator

Calculate your GPA from each course's credits and grade.

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Vacation Balance Calculator

Calculate your remaining annual leave balance from what's accrued and what's used.

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Cooking & Baking Measurement Converter

Convert between volume measures (cups, tablespoons) and weight (grams) based on each ingredient's real density, plus oven temperature.

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