Savings & Investing calculators, in short
Growth math is the mirror image of loan math: interest works for you instead of against you. Use these to project a balance, solve for the deposit a goal requires, or measure what money already returned.
Popular tools in this category
- Compound Interest Calculator — Ending balance, total contributions, and interest earned for any rate, term, and compounding frequency.
- Savings Growth Calculator — Project a savings balance from deposits, or solve for the monthly amount needed to hit a goal.
- ROI Calculator — Net gain, ROI percentage, and annualized return for any investment or business spend.
What can you calculate here?
- What a balance grows to at any rate, term, and compounding frequency
- How much of an ending balance is your deposits versus interest earned
- The monthly deposit needed to reach a savings goal by a date
- ROI and annualized return on an investment or business spend
Find the right calculator
3 calculators
Savings
Compound Interest Calculator
Ending balance, total contributions, and interest earned for any rate, term, and compounding frequency.
Savings
Savings Growth Calculator
Project a savings balance from deposits, or solve for the monthly amount needed to hit a goal.
Savings
ROI Calculator
Net gain, ROI percentage, and annualized return for any investment or business spend.
Every savings & investing calculator
Each tool below shows the formula it uses, a worked example, and what the result means in practice.
- Compound Interest CalculatorEnding balance, total contributions, and interest earned for any rate, term, and compounding frequency.
- Savings Growth CalculatorProject a savings balance from deposits, or solve for the monthly amount needed to hit a goal.
- ROI CalculatorNet gain, ROI percentage, and annualized return for any investment or business spend.
Common questions about savings & investing calculations
- What return rate should I assume?
- Use the rate your account actually pays for cash savings, and a conservative long-run assumption for invested money. Run the projection twice, at a low and a high rate, and treat the gap as the honest range rather than trusting a single number.
- How much difference does compounding frequency make?
- Less than most people expect. Moving from annual to monthly compounding at the same nominal rate adds a fraction of a percent to the effective yield. The deposit amount and the number of years matter far more.
- Are these figures before or after inflation and tax?
- Before both. The projection grows the money at the nominal rate you enter, so the ending balance is in future dollars and ignores tax on interest or gains.