Vesting calculator

If you leave at month N, what do you actually keep? The cliff, the monthly vest, the cash you'd need to exercise, and the window you'd have to pay it. Runs entirely in your browser; we never see your numbers.

Your grant & timeline

Options in the grant

Strike price

Vesting period (years)

Cliff (months)

Exercise window after leaving (days)

90 days is standard; some companies extend to 5–10 years — worth asking

If you leave at month · 18

What you'd walk away with

Vesting timeline

cliff · 12myou leave · 18m

Vested options

3,750

38% of the grant

Forfeited (unvested)

6,250

Cash needed to exercise

$9k

You'd have 90 days after your last day to pay that or lose the vested options too.

Worth checking in your paperwork

Schedule shape: this assumes monthly vesting after the cliff. Some companies vest quarterly, and a few (famously Amazon) back-load the schedule.
The exercise window is the silent equity killer: 90 days to find the cash — plus the tax bill exercising can trigger — or the vested options expire.
Leaving right before the cliff or a vest date is the oldest timing mistake. Check the exact dates in your grant agreement, not this slider.

Educational estimate only — not financial, tax, or legal advice.