Calculators

Focused utilities in this category. Each one opens on its own page and runs in your browser.

Local Free No signup

Unit Price Calculator Calculate unit price and compare two items by price and quantity to find the best deal instantly. Free online unit price calculator — no sign-up.

Date Calculator Calculate the difference between two dates or add and subtract days from any date. Free online date calculator — no registration required.

Percentage Calculator Calculate percentages of numbers, percent change, and percentage differences instantly. Free online percentage calculator — no sign-up needed.

Ratio Calculator Simplify ratios to lowest terms, find equivalent ratios, and scale any A:B ratio instantly. Free online ratio calculator — no registration required.

Discount Calculator Calculate sale prices, discounts, and savings in seconds. Find the final price after any discount and optional tax. Free online discount calculator.

Time Calculator Add or subtract times and calculate the duration between two timestamps in HH:MM:SS format. Free online time calculator — no registration required.

BMI Calculator Calculate your Body Mass Index (BMI) instantly using metric or imperial units. See your weight category and healthy range. Free online BMI calculator.

Age Calculator Calculate your exact age in years, months, days, hours, and minutes from any birth date. Free online age calculator — no registration required.

Keep exploring

Text

Reverse Text

Encode and Decode

Special Characters Generator

Open Text

Conversion

Base Converter

Length Converter

Cooking Converter

Open Conversion

Organize PDF

Reorder PDF Pages

Merge PDF

Split PDF

Open Organize PDF

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Using the Calculators tools

The tools listed above each handle one specific job inside the Calculators category. Open the one that matches your task, provide the input it asks for, and the processing happens directly in the browser tab — nothing is sent to a server.

Keep a copy of your original file or text before you begin, and review the result before putting it to use. If the output is not what you expected, adjust the settings and run the tool again.