Smart Savings Calculator

Advanced financial planning with expense tracking, scenarios & retirement modeling

Read about it

Basic Settings

The amount of money you already have saved when you start this plan. This is your initial balance that will grow over time.
$
The amount of money you plan to save each month. This is added to your savings balance regularly and will earn interest over time.
$
The yearly interest rate your savings will earn. Typical savings accounts earn 0.5-2%, while investments may earn 5-10% or more. This is the annual rate before compounding.
%
How often interest is calculated and added to your balance. Monthly compounding means interest is calculated every month, which grows your savings faster than annual compounding. Simple interest means no compounding - you only earn interest on the original amount.
How many years you plan to save. This determines how long your money will grow and compound. Longer time horizons allow more growth through compound interest.
years
When during the month your contribution is added. 'Beginning' means you add money at the start of each month (earns more interest), while 'End' means you add it at the end (earns slightly less interest).

Advanced Options

If your income increases over time, you can model that here. For example, if you plan to increase your monthly savings by 3% each year (due to raises or promotions), enter 3. This helps you see how growing contributions accelerate your savings.
%
Increase monthly contribution by this % each year
The average annual inflation rate. Inflation reduces the purchasing power of your money over time. For example, if inflation is 2.5%, something that costs $100 today will cost $102.50 next year. The 'Real Value' shows what your savings will actually be worth in today's dollars.
%
Shows real purchasing power
The tax rate you'll pay on interest earned. Most savings accounts and investments are taxable. For example, if you're in a 25% tax bracket, enter 25. Tax-advantaged accounts like IRAs or 401(k)s would be 0% (taxes paid later). This reduces your actual interest earnings.
%
Tax rate applied to interest earned

Monthly Expense Categories

Track your expenses to see net savings after expenses

$

Irregular Expenses (One-time Costs)

Add one-time expenses that occur at specific times

Lump Sum Contributions

Add one-time contributions (bonuses, inheritance, etc.)

Scenario Analysis

Compare different scenarios: Base Case, Optimistic, Pessimistic

Base Case

Uses your current inputs

$0

Optimistic Scenario

Add this percentage to your base interest rate for the optimistic scenario. For example, if your base rate is 5% and you enter +2%, the optimistic scenario uses 7% interest.
Increase your monthly contribution by this percentage in the optimistic scenario. For example, entering 10% means you'll contribute 10% more each month than your base amount.
Adjust the inflation rate for this scenario. Positive values increase inflation (reduces purchasing power), negative values decrease it. Leave at 0 to use your base inflation rate.
$0

Pessimistic Scenario

Subtract this percentage from your base interest rate for the pessimistic scenario. For example, if your base rate is 5% and you enter -2%, the pessimistic scenario uses 3% interest.
Decrease your monthly contribution by this percentage in the pessimistic scenario. For example, entering -10% means you'll contribute 10% less each month than your base amount.
Adjust the inflation rate for this scenario. Positive values increase inflation (reduces purchasing power), negative values decrease it. Leave at 0 to use your base inflation rate.
$0

Retirement Planning

The age at which you plan to retire. The calculator will project your savings growth until this age and then calculate if you have enough to sustain your retirement expenses.
How much money you'll need each month during retirement to cover all your expenses (housing, food, healthcare, entertainment, etc.). This should be in today's dollars - the calculator will adjust for inflation.
$
The percentage of your retirement savings you'll withdraw each year. The '4% rule' is a common guideline: withdraw 4% of your savings in the first year, then adjust for inflation. This rate helps ensure your savings last throughout retirement.
Common rule: 4% safe withdrawal rate
The expected inflation rate during your retirement years. This affects how much your expenses will increase each year and how long your savings will last. Typically 2-3% per year.

Retirement Readiness

Required Savings
$0
Projected Savings
$0
Years Savings Will Last
0
Status
-

Projected Results

Final Balance
$0
Total Contributions
$0
Interest Earned
$0
After Tax
$0
Real Value
$0
Net Monthly Savings
$0
Based on your monthly contribution and recurring monthly expenses.

Charts & Projections

These update instantly as you change inputs in any tab.

Monthly Cash Flow Preview

See your monthly cash flow for the first 12 months

Year-by-Year Breakdown

Year Starting Balance Contributions Expenses Interest Ending Balance

What This Smart Savings Calculator Is Designed To Do

This tool brings everything together in one place so you can actually plan your financial life instead of guessing.

It tracks your ongoing savings, your expenses, your lump sums, and even your future retirement. Every number you enter updates the full projection instantly so you can see how your decisions ripple forward across the years.

Why It's More Than a Simple Savings Calculator

Most calculators online only do this:

Real life is never that clean.

This tool simulates all of it, month by month and year by year, so you get a picture that's actually realistic.

How to Get the Best Results

A few things to keep in mind:

If you want, you can even model optimistic or pessimistic scenarios to see how things change if life goes better or worse than you expect.