Savings and interest calculators
See how small amounts grow, how long a savings goal takes, and how much cushion you really need.
7 free calculators
Compound Interest Calculator
See how savings or investments grow with monthly contributions and compound interest. Free and instant.
Open calculator →Savings Goal Calculator
Find out how much to save each month to reach your goal by a target date.
Open calculator →Simple Interest Calculator
Calculate simple interest and the final amount on a loan or deposit. Free and instant.
Open calculator →Savings Interest (APY) Calculator
Convert APR to APY and see how much a savings account earns with compounding.
Open calculator →Emergency Fund Calculator
Find out how big your emergency fund should be and how long it will take to build.
Open calculator →Rule of 72 Calculator
Estimate how many years it takes to double your money at any rate of return.
Open calculator →CD (Certificate of Deposit) Calculator
Work out what a CD or fixed-term deposit will earn at a given rate and term.
Open calculator →Money guides for Savings & Interest
All guides →Compound Interest Explained (and Why Starting Early Wins)
How compound interest works, the rule of 72, and a simple example showing why time matters most.
Read guide →How to Save Money: 10 Practical Ways with Real Numbers
Ten proven ways to save money, each with the math showing how much you can keep every year.
Read guide →How to Make a Budget in 5 Simple Steps
A beginner-friendly guide to building a monthly budget that you can actually stick to.
Read guide →The Rule of 72: How Fast Will Your Money Double?
A one-line mental shortcut for doubling time, with examples, and how it relates to CAGR and compound interest.
Read guide →What Is Net Worth and How Do You Grow It?
Assets minus debts is the one number that shows your progress. Learn how to calculate it and the levers that raise it.
Read guide →Emergency Funds and Rent vs Buy: Two Big Early Decisions
How many months of cash to hold, and how to compare renting with buying using total cost rather than gut feeling.
Read guide →Real Return: What Fees, Tax and Inflation Take
Why a 7% headline return can feel much smaller, and how to measure growth in today's money after costs.
Read guide →Other calculator categories
Mortgage & Home Buying
Work out your monthly payment, how much house you can afford, and whether renting or buying wins.
- Mortgage Calculator
- How Much House Can I Afford?
- Refinance Break-Even Calculator
- Down Payment Savings Calculator
Loans & Car Finance
See what a loan really costs, how much car you can afford, and how much interest an extra payment saves.
- Loan Payment Calculator
- Car Loan Calculator
- Car Affordability Calculator
- Student Loan Payoff Calculator
Debt Payoff
Find the fastest and cheapest way out of debt, and see if a balance transfer is worth the fee.
- Credit Card Payoff Calculator
- Debt-to-Income (DTI) Calculator
- Debt Payoff Planner (Snowball vs Avalanche)
- Balance Transfer Calculator
Investing & Returns
Measure what an investment really earned, what inflation takes back, and how long it takes to reach a big goal.
- Inflation Calculator
- ROI Calculator
- Dividend Income Calculator
- CAGR Calculator
Retirement Planning
See how much you need to retire, what your 401k can become, and how long your money will last.
- Retirement Savings Calculator
- FIRE Number Calculator
- Roth vs Traditional IRA Calculator
- 401(k) Calculator with Employer Match
Budgeting & Net Worth
Plan your month, check your financial health, fix a deficit and plan big events with clear numbers.
- 50/30/20 Budget Calculator
- Net Worth Calculator
- Monthly Financial Planner
- Wedding Budget Calculator
Smart Spending & Shopping
Check a deal, split a bill, and see what small daily habits and subscriptions really cost over the years.
- Tip & Bill Splitter
- Percentage Calculator
- Discount Calculator
- Sales Tax & VAT Calculator
Salary & Pay
Know what your time is worth, what a raise adds up to, and which job offer is really better.
- Salary to Hourly Calculator
- Hourly to Salary Calculator
- Overtime Pay Calculator
- Pay Raise Calculator
Side Hustle & Business
Price your work, check whether a side hustle is profitable, and find your break-even point.
- Freelance Hourly Rate Calculator
- Profit Margin & Markup Calculator
- Break-Even Calculator
- Seller Profit Calculator (Etsy, eBay, Amazon)