VAT Calculator
Add or remove VAT (21%, 10%, 4%) from any amount.
Simple Interest Calculator
Calculate the simple interest and final amount of an investment or loan.
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⚠️ Reference rates: results are estimates. Consult a financial advisor for important decisions.
The simple interest calculator shows you how much interest a principal generates at an annual rate over a given period, as well as the final amount. Perfect for understanding personal loans or short-term investments where interest is not reinvested. Use it as many times as you need: it is completely free, requires no sign-up and works directly in your browser.
Frequently asked questions
¿En qué se diferencia el interés simple del compuesto?
En el interés simple solo genera intereses el capital inicial. En el compuesto, los intereses se suman al capital y generan intereses nuevos. A largo plazo, el compuesto crece mucho más.
¿La calculadora usa años naturales?
Sí, el periodo se expresa en años completos. Para meses, divide el periodo entre 12.
How does simple interest differ from compound interest?
In simple interest, only the initial principal earns interest. In compound interest, interest is added to the principal and earns new interest. Over the long term, compounding grows much more.
Does the calculator use calendar years?
Yes, the term is expressed in full years. For months, divide the term by 12.