When you’ll hit $10K, $100K, and $1M – personal finance calculator
Use this money skills calculator: enter how much you can save each month. We’ll show how long it takes to reach each savings milestone at 8% growth. Simple personal finance math, no jargon.
Why your first $100K is the critical milestone
"The stock market is a device for transferring money from the impatient to the patient."
The first $100,000 is the hardest to save—and the most important. Until you hit it, you’re doing almost all the work yourself: every dollar comes from your paycheck, your side hustle, or your budget. There’s no big pile yet earning money for you. Once you cross $100K and keep investing, something shifts. Compound growth starts to add meaningful dollars each year. The second $100K often takes less time than the first. The third even less. So getting to that first $100K isn’t just a round number—it’s the point where long-term wealth building actually begins.
$100K starts working for you
At 8% annual return, $100,000 generates about $8,000 a year in growth. That’s real money working while you sleep. Before $100K, that number is small. After it, each additional $100K adds another chunk of passive growth. That’s the “money working for you” piece of your Margin Score—this milestone is the launchpad, not the destination.
Saving your first $100K is as much psychology as math. It’s proof that you can live on less than you make, stick to a plan, and delay gratification. You’ve built the habits that make the next $100K possible. Before $100K, your progress is mostly linear: save X per month, add X to the pile. After $100K, growth and contributions work together—the curve bends in your favor.
Your timeline comes down to one thing: how much you save each month. Enter your monthly savings below to see how long to $10K, then $100K, then $1M.
Assumed growth: 8% per year, compounded monthly.
Time to each savings milestone
Related research
The ideas in this guide are backed by academic and policy research. We organize fundamental studies by Margin Score pillar on our Research page.
View research for this pillar →