ABOUT

WaitingCost exists because most compound interest calculators answer the wrong question. They tell you what your money will grow to. They don't tell you what waiting is costing you right now.

This tool does one thing: it shows you that number, honestly. It splits the gap into money you didn't put in and growth that money never got to make, so it reads as arithmetic, not a scare tactic.

No signup. No gate. No calculate button. Just the numbers.

We built this because the answer should be free.