Find what percent of income you save, compare against 15% and 20% benchmarks, or get the amount needed for a target rate.
Savings Rate Formula
Your savings rate is the share of income you keep rather than spend:
R = S / I * 100
To find the savings amount that hits a target rate, the calculator rearranges it:
S = I * R / 100
Variables:
- R is the savings rate, as a percentage
- S is total savings per period – savings account deposits, retirement contributions, brokerage investments, and extra debt principal payments
- I is income for the same period. Most people use take-home (net) pay; gross works too as long as you use the same basis consistently
Pick what you want to find at the top. “My savings rate” takes income and the amount you save and returns the rate with benchmarks at 15% and 20%. “How much to save” takes a target rate and returns the monthly, annual, and per-paycheck amounts that get you there. Enter amounts per month or per year – the toggle applies to both fields.
What Different Savings Rates Achieve
This table shows how long it takes to accumulate one year of living expenses at each savings rate when spending equals income minus savings, with constant amounts and no investment return or inflation.
| Savings rate | Monthly amount on $5,000 income | Years to save 1 year of expenses |
|---|---|---|
| 5% | $250 | 19 years |
| 10% | $500 | 9 years |
| 15% | $750 | 5.7 years |
| 20% | $1,000 | 4 years |
| 30% | $1,500 | 2.3 years |
| 50% | $2,500 | 1 year |
Example Problems
Example 1: Finding your savings rate.
Your chosen monthly income basis is $5,000, including any payroll contributions you choose to count. You put $400 into retirement, $300 into savings, and $200 into a brokerage account, so S = $900:
R = 900 / 5,000 x 100 = 18%. That sits between the illustrative 15% and 20% comparisons; these are not personalized recommendations.
Example 2: Hitting a 20% target.
With the same income and a 20% goal: S = 5,000 x 20 / 100 = $1,000 per month, which is $12,000 per year or about $462 per biweekly paycheck.
Frequently Asked Questions
What counts as savings?
Anything that builds net worth rather than being consumed: emergency fund deposits, 401(k) and IRA contributions (including employer match if you want the fuller picture), brokerage investments, and extra principal on debt beyond the minimum payment. Minimum debt payments and bills are spending, not saving.
What is a good savings rate?
There is no single savings rate that fits every household. The 50/30/20 framework uses 20% of take-home pay for savings and debt payments; its definition is not identical to this tool’s savings total. Use a target that reflects your circumstances and a consistent income basis. The 15% and 20% outputs are comparisons only.
Should I calculate it on gross or net income?
Net (take-home) is the most common and intuitive basis, but either works if you stay consistent. One wrinkle: pre-tax 401(k) contributions never appear in take-home pay, so add them to both the income and savings figures when you want your true rate rather than just your cash-account rate.
