Free tool — no signup
Savings Rate Calculator
Enter what you earn and what you spend in a typical month to see the percentage of your income you actually keep.
Your savings rate is the single most useful monthly number in personal finance: it moves when either income or spending changes, and it decides how long financial independence takes. Nothing you type here leaves your browser.
Your typical month
Salary and other income after tax
Rent, or mortgage interest and maintenance
Food, utilities, transport, insurance
Eating out, subscriptions, travel, shopping
Counted as saving, not spending
Anything not covered above
Total monthly spending: $0.00
Your savings rate
—
Enter your monthly income to see your savings rate.
Track this automaticallyA free Finwise account recalculates your savings rate every month from your real income and spending.
How to calculate your savings rate
- 1. Take your monthly income. Use take-home pay after tax, and include any side income you can rely on.
- 2. Add up your spending. Housing, essentials, lifestyle and anything else that leaves your account and does not build an asset.
- 3. Subtract. Income minus spending is what you saved that month, whether it sits in cash or gets invested.
- 4. Divide by income. Saved divided by income, times 100, is your savings rate.
- 5. Repeat monthly. One month is noisy; the three-month average is the number worth acting on.
What savings rate means for your timeline
Savings rate works on both ends of the equation at once. Saving more raises the money going in, and the lower spending that produced it also lowers the corpus you eventually need. That is why small increases matter so much at the low end of this table.
| Savings rate | Years of spending funded per year saved | What it usually means |
|---|---|---|
| 10% | 0.11 | Long horizon; income growth matters most |
| 20% | 0.25 | Common baseline guidance |
| 35% | 0.54 | Investing becomes the main driver |
| 50% | 1.00 | Each year saved funds a full year of spending |
| 65% | 1.86 | Aggressive, typically high income or low fixed costs |
Ratios are the arithmetic result of the rate itself, before any investment return.
Example: $5,000.00 a month
Example only, calculated with the same logic as the tool above. Someone takes home $5,000.00 and spends $1,300.00 on housing, $900.00 on essentials, $700.00 on lifestyle and $200.00 on everything else, while repaying $300.00 of loan principal.
- Monthly spending
- $3,100.00
- Kept each month
- $1,900.00
- Savings rate
- 38.0%
- Excluding debt principal
- 32.0%
Savings rate calculator FAQ
Related calculators
Your savings rate feeds straight into every retirement projection — use it with the FIRE tools to see the timeline it buys you.
- 50/30/20 budget calculator
- Net worth calculator
- FIRE calculator
- Guide: monthly budget planning
- All financial calculators