Interest Formula:
From: | To: |
Yearly savings interest represents the amount earned on a principal sum over one year based on a specified annual interest rate. It is a fundamental concept in personal finance and savings planning in the UK.
The calculator uses the simple interest formula:
Where:
Explanation: The formula calculates the interest earned on a principal amount over one year at a given annual interest rate.
Details: Understanding yearly interest helps individuals plan their savings, compare different savings products, and make informed financial decisions in the UK market.
Tips: Enter the principal amount in GBP and the annual interest rate in decimal form (e.g., 0.05 for 5%). Both values must be valid (principal > 0, rate ≥ 0).
Q1: What is the difference between simple and compound interest?
A: Simple interest is calculated only on the principal amount, while compound interest is calculated on the principal plus accumulated interest.
Q2: How do I convert percentage to decimal?
A: Divide the percentage by 100 (e.g., 5% becomes 0.05).
Q3: Is this calculator suitable for all UK savings accounts?
A: This calculator provides basic simple interest calculation. Some UK savings accounts may use compound interest or have different terms.
Q4: Are there taxes on savings interest in the UK?
A: Yes, savings interest may be subject to tax depending on your personal savings allowance and income tax band.
Q5: Can I use this for monthly interest calculations?
A: This calculator provides yearly interest. For monthly interest, divide the annual rate by 12 and adjust accordingly.