60/40 Portfolio Calculator

A 60/40 portfolio holds 60% in stocks and 40% in bonds. It is a classic balanced mix. The stocks drive growth, and the bonds add stability and income. It has long been a default starting point for everyday investors.

The calculator models stocks at a 10% return with 16% volatility and bonds at a 4% return with 5% volatility. For a 60/40 mix, that gives an expected return of 7.60% and volatility of 10.00%. These are long-run estimates, not promises.

The 60/40 portfolio remains a widely used balanced benchmark. It gives up some return versus all stocks in exchange for much lower risk. In 2022, stocks and bonds fell together, which tested the mix. It still suits many investors seeking balance. For a deeper look at whether the strategy is outdated and how a mix like this behaves in a broader market crash, see is the 60/40 portfolio dead.

In the model, $100,000 split 60/40 with no added contributions grows to about $900,260 over 30 years. This uses a 7.60% expected return. Actual results will differ because real markets rise and fall.

Bonds are generally less volatile than stocks but offer more modest returns, per SEC guidance. Adding 40% bonds lowers the 60/40 portfolio's volatility to 10.00%, well below an all-stock mix. That trade buys you a smoother path for less return.

It can be, but retirees typically weight it differently than someone still saving. The 60/40 split is often used during the working years for growth with some stability; near or in retirement, many investors shift toward more bonds to reduce how much a downturn can shrink withdrawals. Use the asset allocation calculator to test a more conservative mix against your own retirement timeline. If you'd rather not manage that shift by hand, a target-date fund automates roughly the same stock/bond glide path a 60/40 investor manages manually, shifting toward bonds as the target date nears; our target-date fund vs. S&P 500 comparison covers the fund's mechanics against an all-stock benchmark, not a direct match against a 60/40 mix.

A 60/40 split has no fee of its own. The cost comes from the expense ratio of the stock and bond funds you use to build it, plus any brokerage trading fees. Low-cost, broad index funds keep this cost small, but expense ratios vary by fund, so check them before you buy.

A 60/40 portfolio offers only partial inflation protection. Stocks have historically outpaced inflation over long stretches, but bonds are more exposed, since their fixed interest payments buy less when prices rise unexpectedly. Some investors offset this by shifting part of the bond allocation into inflation-linked bonds like TIPS.

In the model, a 90/10 mix has a meaningfully higher expected return (9.40% vs 7.60%) and higher volatility (14.46% vs 10.00%) than 60/40. Over 30 years with no added contributions, $100,000 grows to about $1,480,879 in a 90/10 mix versus about $900,260 in a 60/40 mix — roughly $580,000 more, in exchange for a much wider range of possible one-year outcomes. Run your own numbers in the 90/10 portfolio calculator, or see the full 60/40 vs 90/10 portfolio comparison for the complete side-by-side.

A 100% stock portfolio has historically returned more over long periods than a 60/40 mix, but with meaningfully higher volatility and larger drawdowns along the way. In the model above, stocks alone carry 16% volatility versus 10.00% for the 60/40 mix, and that gap widens the range of single-year outcomes. The 60/40 split trades some of that extra long-run upside for a smoother ride, since the bond allocation cushions losses when stocks fall. For a closer stock/bond split, see the 60/40 vs 70/30 comparison.

The 30-year growth projection is a nominal, pre-tax figure: it compounds the 7.60% expected return each year without subtracting inflation or taxes. That's the standard convention for a return-based projection like this one, so the $900,260 example represents future dollars, not what those dollars would buy after 30 years of inflation, and it doesn't account for taxes owed on any gains.

You build a 60/40 portfolio by putting 60% of your money into one broad U.S. stock index fund and 40% into one broad bond index fund at any major brokerage, then rebalancing back to that split about once a year. Most investors hold a single total-stock-market fund for the stock side and a single total-bond-market fund for the bond side, which keeps the portfolio to two funds and the ongoing cost low. See how and when to rebalance for the tax-smart way to handle that yearly check-in.

At a 4% initial withdrawal rate, $1,000,000 supports about $40,000 a year and has historically sustained roughly 30 years of retirement in most market scenarios. See our withdrawal calculator to model your own balance and withdrawal amount against that 30-year benchmark.

No published figure covers retirement-account balances alone. The Federal Reserve's Survey of Consumer Finances instead publishes a total-net-worth cutoff, roughly $1.46 million for the top 10% across all ages and asset types. Retirement accounts are only one slice of that combined figure alongside home equity and other assets. The actual share of Americans holding $1 million specifically inside retirement accounts is therefore smaller than that headline number suggests. See the net worth percentile calculator for the full set of total-net-worth cutoffs.