Investment Return Calculator: How Much Will Your Investments Grow? (2026)

· Updated

Use these tables to project how your investments will grow over time with regular contributions.

Table of Contents

Investment Growth Tables

$100/Month Invested

Years At 5% Return At 7% Return At 8% Return At 10% Return Total Contributed
5 $6,800 $7,159 $7,348 $7,744 $6,000
10 $15,528 $17,308 $18,295 $20,484 $12,000
15 $26,729 $31,696 $34,604 $41,447 $18,000
20 $41,103 $52,093 $58,902 $75,937 $24,000
25 $59,551 $81,007 $95,103 $132,683 $30,000
30 $83,226 $121,997 $149,036 $226,049 $36,000
40 $152,602 $262,481 $349,101 $632,408 $48,000

$300/Month Invested

Years At 5% Return At 7% Return At 8% Return At 10% Return Total Contributed
5 $20,399 $21,477 $22,044 $23,232 $18,000
10 $46,585 $51,924 $54,886 $61,453 $36,000
15 $80,187 $95,088 $103,813 $124,341 $54,000
20 $123,310 $156,279 $176,706 $227,811 $72,000
25 $178,653 $243,022 $285,308 $398,050 $90,000
30 $249,679 $365,991 $447,107 $678,146 $108,000
40 $457,805 $787,443 $1,047,304 $1,897,224 $144,000

$500/Month Invested

Years At 5% Return At 7% Return At 8% Return At 10% Return Total Contributed
5 $33,998 $35,796 $36,740 $38,720 $30,000
10 $77,641 $86,541 $91,473 $102,422 $60,000
15 $133,645 $158,481 $173,021 $207,235 $90,000
20 $205,517 $260,465 $294,510 $379,684 $120,000
25 $297,755 $405,036 $475,513 $663,416 $150,000
30 $416,132 $609,985 $745,180 $1,130,244 $180,000
40 $763,009 $1,312,405 $1,745,507 $3,162,040 $240,000

$1,000/Month Invested

Years At 5% Return At 7% Return At 8% Return At 10% Return Total Contributed
5 $67,996 $71,593 $73,480 $77,437 $60,000
10 $155,282 $173,085 $182,946 $204,845 $120,000
15 $267,290 $316,962 $346,038 $414,470 $180,000
20 $411,034 $520,927 $589,020 $759,369 $240,000
25 $595,510 $810,073 $951,026 $1,326,832 $300,000
30 $832,259 $1,219,971 $1,490,359 $2,260,488 $360,000
40 $1,526,020 $2,624,810 $3,491,014 $6,324,080 $480,000

$2,000/Month Invested

Years At 5% Return At 7% Return At 8% Return At 10% Return Total Contributed
5 $135,992 $143,186 $146,960 $154,875 $120,000
10 $310,565 $346,170 $365,893 $409,690 $240,000
15 $534,580 $633,924 $692,076 $828,939 $360,000
20 $822,068 $1,041,854 $1,178,041 $1,518,738 $480,000
25 $1,191,019 $1,620,146 $1,902,053 $2,653,664 $600,000
30 $1,664,518 $2,439,942 $2,980,717 $4,520,975 $720,000
40 $3,052,040 $5,249,619 $6,982,028 $12,648,160 $960,000

Lump Sum Investment Growth

$10,000 One-Time Investment

Years At 5% At 7% At 8% At 10% At 12%
5 $12,763 $14,026 $14,693 $16,105 $17,623
10 $16,289 $19,672 $21,589 $25,937 $31,058
15 $20,789 $27,590 $31,722 $41,772 $54,736
20 $26,533 $38,697 $46,610 $67,275 $96,463
25 $33,864 $54,274 $68,485 $108,347 $170,001
30 $43,219 $76,123 $100,627 $174,494 $299,599

$50,000 One-Time Investment

Years At 7% At 8% At 10%
5 $70,128 $73,466 $80,526
10 $98,358 $107,946 $129,687
15 $137,952 $158,608 $208,862
20 $193,484 $233,048 $336,375
25 $271,372 $342,424 $541,735
30 $380,613 $503,133 $872,470

The Rule of 72: How Long to Double Your Money

Annual Return Years to Double Years to 4× Years to 8×
3% 24 years 48 years 72 years
4% 18 years 36 years 54 years
5% 14.4 years 28.8 years 43.2 years
6% 12 years 24 years 36 years
7% 10.3 years 20.6 years 30.9 years
8% 9 years 18 years 27 years
10% 7.2 years 14.4 years 21.6 years
12% 6 years 12 years 18 years

Impact of Fees on Returns

$500/Month Over 30 Years at 8% Gross Return

Annual Fee Net Return Final Balance Amount Lost to Fees
0.03% (Vanguard index fund) 7.97% $741,760 $3,420
0.10% (Fidelity index fund) 7.90% $737,070 $8,110
0.50% (average ETF) 7.50% $710,830 $34,350
1.00% (average mutual fund) 7.00% $609,990 $135,190
1.50% (advisor + fund fees) 6.50% $544,510 $200,670
2.00% (high-cost advisor) 6.00% $485,760 $259,420

A 1% fee difference costs you $135,190 over 30 years on a $500/month investment.

Historical Returns by Asset Class

Asset Class 30-Year Average (1995-2024) 20-Year Average (2005-2024) 10-Year Average (2015-2024)
S&P 500 10.3% 10.5% 13.0%
Total US Stock Market 10.1% 10.2% 12.6%
International Stocks (MSCI EAFE) 6.2% 5.8% 5.4%
US Aggregate Bonds 4.9% 2.8% 1.8%
60/40 Portfolio 8.1% 7.4% 8.5%
REITs 9.2% 7.5% 6.8%
Cash/T-Bills 2.8% 2.1% 2.3%
Inflation (CPI) 2.5% 2.8% 3.2%

What Your Investments Can Buy in Retirement

Monthly Income from a 4% Withdrawal Rate

Investment Balance Monthly Income Annual Income Lifestyle
$100,000 $333 $4,000 Social Security supplement
$250,000 $833 $10,000 Cover groceries + utilities
$500,000 $1,667 $20,000 Modest retirement with SS
$750,000 $2,500 $30,000 Comfortable with SS
$1,000,000 $3,333 $40,000 Good retirement with SS
$1,500,000 $5,000 $60,000 Very comfortable
$2,000,000 $6,667 $80,000 Excellent retirement
$3,000,000 $10,000 $120,000 Wealthy retirement
$5,000,000 $16,667 $200,000 Can sustain any lifestyle

Starting Early vs Starting Late

Same $500/Month Contribution, 8% Return

Scenario Start Age End Age Years Investing Total Contributed Final Balance
Early bird 22 67 45 $270,000 $2,284,916
On track 25 67 42 $252,000 $1,844,920
Catching up 30 67 37 $222,000 $1,270,963
Late start 35 67 32 $192,000 $862,056
Behind 40 67 27 $162,000 $574,057
Way behind 45 67 22 $132,000 $373,040
Panic mode 50 67 17 $102,000 $234,003

Starting at 22 vs 35 with the same $500/month: the 13-year head start produces $1.4 million more (3.6× the total contributions).

Related: Compound Interest Calculator | Investment Goal Calculator | S&P 500 Historical Returns | Dollar-Cost Averaging | Index Funds vs ETFs | How to Start Investing