Home / Tools / Calculators
Simple Interest Calculator
Calculate simple interest and the total amount for a principal, rate and time.
About Simple Interest Calculator
Calculate simple interest and the total amount for a principal, rate and time. Simple Interest Calculator is one of the free tools in the Calculators category on Serpgy. It works in your browser, needs no account and is designed to be quick on phones, tablets and desktops.
More Calculators tools
- Percentage Calculator — Calculate percentages, increases, decreases and ratios.
- Discount Calculator — Find sale price and savings from an original price and discount.
- Loan EMI Calculator — Calculate monthly payments, total interest and total paid.
- Compound Interest Calculator — Calculate growth with recurring compounding.
- Age Calculator — Calculate age from a date of birth.
- BMI Calculator — Calculate body mass index from height and weight.
Related guides and articles
- How to Calculate a Percentage — Simple formulas for discounts, increases and ratios.
- How to Calculate a Loan EMI — See how the monthly instalment is worked out and how term and rate change the cost.
- How to Create a QR Code That Scans Every Time — Make QR codes for links, text and Wi-Fi, with contrast, size and testing tips.