Retirement Savings Calculator

This retirement savings calculator focuses on the accumulation phase: how much your retirement pot could grow before you stop work or start drawing from it.

Enter current retirement savings, a monthly contribution, years until retirement, and an expected annual return. The calculator estimates the projected balance, total contributions, investment growth, a simple growth chart, and a year-by-year table.

It is intentionally narrower than the full retirement calculator. It does not calculate required retirement income, withdrawal rates, tax, pension scheme rules, Social Security, state pension, or whether the balance is enough for a specific lifestyle.

Use it when the search intent is retirement savings growth or contribution planning. Use the broader retirement calculator when the question is about income needs, portfolio target, or whether you are on track.

Suppose you already have GBP 25,000 saved and add GBP 400 per month for 25 years. If the account grows at an average 6% per year before inflation, tax, and fees, the projected balance would be much higher than contributions alone because each year's growth can also earn growth later.

The important split is between money you contribute and money generated by investment growth. If the projection depends mostly on a very high assumed return, test a lower return to see whether the plan still feels workable.

The highest-impact levers are usually starting earlier, increasing contributions, reducing investment costs, and making sure employer matches or pension contributions are not missed.

Run the calculator with small contribution increases, such as GBP 50 or GBP 100 more per month. Over a long time period, modest changes can produce a surprisingly large difference because compounding has more years to work.

A retirement savings projection is not the same as a retirement income plan. The calculator does not decide how much you can withdraw, when you should retire, or how pension tax rules affect you.

For those questions, use this result as one input alongside expected retirement spending, inflation, pension access rules, tax treatment, and a realistic view of investment risk.

This calculator uses current savings, monthly contribution, years until retirement, and expected annual return.

The result separates total contributions from estimated investment growth, which makes it easier to see how much of the final balance depends on return assumptions.

The projection compounds monthly and shows yearly rows. It does not model withdrawals after retirement.

Inflation, tax, pension scheme rules, employer matching, contribution limits, and investment fees are not included unless you adjust the inputs yourself.

Using it as a retirement income calculator when it only projects savings growth.

Forgetting that a nominal projected balance may have less buying power after inflation.

Ignoring fees or taxes that reduce the real balance available at retirement.

Use retirement when you need to compare a projected balance with a goal or estimate required income-based portfolio size.

Use investment when you need contribution frequency, target contribution, lump sum, or years-needed modes.

Use savings when the goal is a cash savings target rather than long-term retirement accumulation.

Rerun the projection when monthly contributions, current savings, expected return, or years until retirement changes.

Review after pay rises, career breaks, employer match changes, pension fee changes, or major market movements.

Keep the contribution and return assumptions visible so you can tell whether progress came from saving more or from market growth.

Increase contributions when income rises before lifestyle spending absorbs the raise — that is often the highest-impact retirement move available.

Keep employer match and tax-advantaged accounts in the model — missing match is an immediate return left on the table.

Compare this projection with retirement calculator using the same return and contribution assumptions so income and balance targets stay aligned.

Track progress with balance milestones every 12 months — adjusting contributions after a good market year beats stopping entirely after a bad one.

Platform and fund fees compound over decades — compare 0.5% versus 1.0% on the same balance to see how much goes to providers instead of you.

Default workplace funds are a starting point, not necessarily the lowest-cost option for your age and risk tolerance.