Percentage Calculator
Calculate a percentage of a value quickly and clearly.
Open tool →
Free browser-based tools
Simple Online Tools for Everyday Tasks
AvyTool provides practical calculators and text utilities for quick everyday calculations, writing tasks, and simple planning.
AvyTool
18 tools
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Popular Tools
Start with a few of the most useful everyday tools.
Discount Calculator
Find sale prices and savings.
Open tool →Loan Calculator
Estimate monthly payments and total interest.
Open tool →Compound Interest
Estimate growth with compounding.
Open tool →Word Counter
Count words directly in your browser.
Open tool →Time Duration
Calculate elapsed hours and minutes.
Open tool →Learn How the Calculations Work
Short guides explain the formulas behind common tasks.
Percentage Increase
Learn how to compare an original value with a new value.
Read guide →Loan Payments
Understand the fixed-payment formula used by the loan calculator.
Read guide →Reading Time
See how word count and reading speed produce an estimate.
Read guide →Why AvyTool?
AvyTool is designed for quick, straightforward tasks. The tools run in your browser, so simple calculations and text processing can be completed without installing software.
Privacy-friendly by design: Many tools process the information you enter locally in your browser. Always review a site's privacy policy before entering sensitive information into any online service.