Calculator Tool

Simple Interest Calculator

Compute simple interest using the classic formula and get a clean breakdown of interest earned or owed.

How to Use This Calculator

Simple steps to solve your simple interest calculator problems

1

Try AI Math Solver

Click the button above to access our AI-powered math solver.

2

Input Your Problem

Type, paste, or upload an image of your simple interest calculator problem in natural language.

3

Get Step-by-Step Solution

Receive a detailed walkthrough with clear explanations for each step.

4

Ask Follow-up Questions

Need clarification? Ask questions about any step in the solution process.

Example prompts to paste

  • Simple interest on $2,400 at 6% for 18 months
  • If interest is $150 on $1,000 over 2.5 years, what rate is that?
  • How long does it take to earn $300 interest on $5,000 at 4% simple interest?

About This Calculator

Why MathAI GPT is different from traditional calculators

Simple interest grows only on the principal (not on accumulated interest). It shows up in many classroom problems and some short-term lending situations.

Common Uses

  • Calculate interest earned over a time period
  • Solve for rate given interest and time
  • Solve for time needed to earn a target interest
  • Convert between annual rate and time in months/days

Key Advantages

Shows each logical step — not just the final answer
Understands free-form math and plain language together
Accepts images of handwritten or printed problems
Helps you learn the method, not just copy answers
Simple Interest Calculator | MathAI GPT