Growing savings plan calculator

You save each month and raise that amount every year? Enter the raise, the rate and inflation: see the final amount and what it is worth in today’s money.

Growing savings plan calculator

%
%
Nominal rate, inflation not taken off.
years
%
Only used to show the result in today’s money.

Result

49,611.49Final amount

In today’s money (after inflation)
33,387.11
Total paid in
33,244.45
Interest
16,367.04
Monthly deposit in the last year
175.35

Year by year

Detailed table
YearPaid inInterestTotal
12,200.0062.992,262.99
23,436.00178.103,614.10
34,709.08348.945,058.02
46,020.35579.336,599.68
57,370.96873.248,244.21
68,762.091,234.929,997.01
710,194.951,668.7711,863.73
811,670.802,179.4813,850.28
913,190.932,771.9415,962.87
1014,756.663,451.3218,207.98
1116,369.354,223.0420,592.39
1218,030.445,092.8023,123.23
1319,741.356,066.5925,807.94
1421,503.597,150.7228,654.31
1523,318.708,351.7931,670.48
1625,188.269,676.7534,865.01
1727,113.9111,132.9038,246.81
1829,097.3212,727.9141,825.23
1931,140.2414,469.8045,610.05
2033,244.4516,367.0449,611.49

How it is calculated

  1. Each month: balance × (1 + rate ÷ 12), then the deposit is added.
  2. After each full year, the deposit is multiplied by (1 + raise).
  3. Today’s money = final amount ÷ (1 + inflation)^years.

Example

1,000 to start, 100 a month raised by 3% a year, at 4% for 20 years: 49,611.49 at the end, or 33,387.11 in today’s money with 2% inflation.

Good to know

  • The nominal rate and inflation are different things: the rate grows the amount, inflation cuts what it can buy.
  • Constant rate and inflation, no tax or fees.

Frequently asked questions

What is this tool used for?

You save each month and raise that amount every year? Enter the raise, the rate and inflation: see the final amount and what it is worth in today’s money.

How is the result calculated?

Each month: balance × (1 + rate ÷ 12), then the deposit is added.

What should I check before using the result?

The nominal rate and inflation are different things: the rate grows the amount, inflation cuts what it can buy.

Updated October 10, 2026

Indicative result. For an important decision, check with a professional.