Six calculators, zero sign-up. Each one is instant, works on your phone, and every result has a link you can copy and send.
All calculators
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Compound interest calculator
“$X a month for Y years” — see exactly what it turns into, with a chart you can share.
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Millionaire by age calculator
How much to invest each month to hit $1M by 40, 50 or 60.
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$1M or…? dilemma calculator
A lump sum today vs. payments over time (or a penny doubled). The channel’s signature question, with real math.
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S&P 500 “what if I invested” calculator
What $100 a month in an S&P 500 index fund would have grown to, using honest historical averages.
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Coast FIRE calculator
The number where you can stop saving and let compounding finish the job — by age.
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Daily habit cost calculator
What a $6-a-day habit really costs over 30 years if that money were invested instead.
Open calculator →Ready-made scenarios
Don’t want to type? Start from $50–$1,000 a month for 10–40 years or a money dilemma.