CalculationsFeatured
Percentage Calculator
Calculate a percentage from a base amount online for free in seconds.
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Calculations
Simple and fast calculators for percentages, totals and recurring numbers.
This category brings together calculators for everyday numbers that need a fast and reliable answer. It is useful for pricing, age checks, taxes and quick comparisons where mental math is too slow or too easy to get wrong.
Important notice
The tools in this category are provided for informational purposes only. Results may be inaccurate, outdated or incomplete, and should not be treated as financial, tax, legal or business advice.
Read full disclaimerWhat you will find in this category
- Percentage and discount calculators
- Age and date based checks
- VAT and amount breakdown tools
- Simple utilities for recurring business calculations
All available tools
CalculationsFeatured
VAT Calculator
Add VAT, remove VAT from a gross total, and switch between VAT included and VAT excluded prices in seconds.
Open toolWhen to use these tools
- When checking totals, percentages or taxes before sending numbers
- While comparing discounts, increases or net amounts
- When forms or workflows depend on exact age thresholds
- Any time you want a faster answer than manual math
Articles and practical guides
Calculations3 min
When an age calculator is actually useful
A practical guide to age calculation, reference dates and why an age calculator is useful for birthdays, forms and everyday checks.
Read articleCalculations3 min
Chronological age vs exact age: when the difference matters
A practical guide to chronological age and exact age, with reference dates, forms and threshold checks that need a precise result.
Read articleCalculations3 min
How to calculate a percentage in a few seconds
A simple guide to understand what a percentage means and apply it to discounts, increases and quick comparisons.
Read articleCalculations3 min
Percentage increase vs percentage decrease: the practical difference
A practical guide to percentage increase and percentage decrease, common mistakes, price comparisons and how to avoid wrong results.
Read articleTax8 min
How to calculate 22% VAT from a net price or gross total
A practical guide to calculating 22% VAT from a net amount or gross total, with real examples for invoices, quotes, VAT included prices, and reverse VAT checks.
Read articleTax8 min
VAT included vs VAT excluded: what the price really means
A practical guide to understanding VAT included and VAT excluded prices, with examples for quotes, invoices, supplier checks, margin reviews, and common pricing mistakes.
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