LibraTool logoLibraTool
%
💰

Calculate Financial Percentages

Calculate interest, tax, commission, profit margins, and other financial percentages.

Non é necesario iniciar sesión

What is X% of Y?

%
of
=
30

X is what % of Y?

is what % of
=
15%

Percentage change from A to B

→
=
+25%

Increase of 25%

Finance tips

💰

VAT / sales tax: "X% of Y" gives the tax amount. 20% VAT on £100 = £20 tax, total = £120. Or find the pre-tax price: total ÷ 1.20.

📈

Investment return: use "percentage change" from initial investment to current value. $1,200 → $1,500 = +25% return.

💡

Commission: 5% commission on a $4,000 sale = 5% of $4,000 = $200. Use "X% of Y" mode with X=5 and Y=4000.

🏠

Property price change: use "percentage change" to calculate how much a property has appreciated or depreciated since purchase.

Como funciona

1
Entra
Enter your data into the tool above. Everything stays local to your browser.
2
Proceso
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descargar
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Por que usar o noso?

✓Completamente gratuíto, sen custos ocultos, nunca
✓Non se precisa ningunha conta, correo electrónico ou inicio de sesión
✓Os ficheiros nunca saen do teu dispositivo
✓Non hai límites de tamaño de ficheiro
✓Non hai marcas de auga en ningunha saída

Also check out…

🏷️

Calculate Sale Prices and Discounts

Find the discounted price, savings amount, and per

🎓

Calculate Exam Scores and Grades

Convert raw exam scores to percentages, calculate

📊

Calculate Statistical Percentages

Find proportions, relative frequencies, and percen

🏃

Calculate Health and Fitness Percentages

Calculate body fat percentage targets, nutrition m

Preguntas frecuentes

Back to Percentage Calculator