· High Yield Wealth Planning 2026 ·

401(k) & Retirement Savings Growth Calculator

Project your total retirement nest egg across 401(k), Roth IRA, Workplace Pensions, and RRSP accounts with compound growth interest calculations.

Retirement Growth Assumptions

Projected Total Wealth at Retirement
$0
Years of Compounding
0
Total Out-of-Pocket Saved
$0
Total Contributions (You + Employer)
Pure Investment Compound Growth

Projections by Age Milestone

AgeProjected Balance

Understanding Compound Growth in 401(k) & Pension Plans

Retirement planning relies heavily on the power of compound interest. When you invest through tax-advantaged accounts like a US 401(k) or Roth IRA, a UK SIPP/Workplace Pension, or a Canadian RRSP/TFSA, your returns are reinvested without being eroded by annual income tax.

Even small monthly increases in contributions—or taking full advantage of an Employer Match—can dramatically boost your overall nest egg due to exponential growth over 20 to 30 years.

Frequently Asked Questions (FAQ)

How does a 401(k) or Roth IRA grow over time?

Your 401(k) or Roth IRA grows through tax-advantaged compound interest. Monthly contributions earn annual returns (typically 7-10% in broad market index funds), and those returns generate their own gains over time.

What is an Employer Match and why is it crucial?

An employer match is money contributed by your employer to your retirement fund based on your savings rate. It acts as an instant, tax-free return on your money and should always be maxed out first.

Does this calculator work for UK Pensions and Canadian RRSPs?

Yes — compound growth mathematics is global. Simply select GBP (£) for UK Workplace Pensions/SIPPs or CAD (C$) for Canadian RRSP/TFSA accounts to estimate your wealth trajectory.

How does inflation impact my retirement target?

While nominal stock market returns average around 9-10% historically, financial advisors recommend subtracting 2-3% for inflation, using a net 7% return rate to estimate real future purchasing power.