Ever wonder what would happen if you invested instead of spent? This calculator shows the power of compound interest over time.
Adding $500/month to that turns it into $447,000+ in the same period.
Use this calculator before making any financial commitment that depends on this type of calculation. Running the numbers in advance lets you evaluate options without the pressure of a live negotiation or decision deadline.
Many financial calculation errors stem from omitting ancillary costs: fees, taxes, insurance, or maintenance. The headline figure (interest rate, monthly payment) is rarely the complete cost of a financial product.
An employee receives a counter-offer from another employer: a £4,000 salary increase but no pension contribution versus the current role's lower salary with 8% employer pension. Running both through the finance calculator shows the true net financial value of each offer.
At 10% average annual return (S&P 500 average),
At 10% annual return, $500/month for 30 years grows to approximately
The S&P 500 has averaged about 10% annually since 1926, but past performance doesn't guarantee future results.
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