Financial math you actually understand.
Pick a topic, open an example and compute with your own numbers. The calculator types the values in, shows the formula and explains what you learn from it.
Topics
Saving & Compound Interest
6 examples
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Building wealth with regular contributions and lump-sum investments – how time and compounding turn into capital.
Retirement & Withdrawal
5 examples
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How much capital a desired pension costs, what savings rate it takes, and how capital is drawn down in retirement.
Mutual Funds & Securities
4 examples
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Returns, front-end loads, performance versus true return, and the cost-average effect with fluctuating prices.
Real Estate & Loan Financing
5 examples
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Annuities, remaining debt after the fixed-rate period, payoff time and the effective rate of loans with a discount.
Bonds & Zero-Coupon Bonds
3 examples
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Prices, yields and effective rates of interest-bearing and zero-coupon securities.
Inflation & Purchasing Power
3 examples
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How the erosion of money shifts future amounts and the real pension you will need.
Insurance & Product Comparison
3 examples
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Returns of life and pension insurance policies and a fair comparison with alternative investments.
Leasing, Credit & Consumption
3 examples
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The effective rate of leasing and installment loans, plus the true price of spending habits.