Negative equity calculator

Owing more than the car is worth.

Built and reviewed by Dovanic, Founder and editor, FreeByteLast reviewed: 2026-08-18

Loan balance

Car value

Monthly principal

Underwater by

$3,500

Months to positive equity

9 mo

With these inputs, underwater by comes to $3,500. Months to positive equity works out to 9 mo.

What moves the number · Underwater by

Input	−10%	Now	+10%
Loan balance	$1,400	$3,500	$5,600
Car value	$5,250	$3,500	$1,750

Whatmakesequal

Save this set of inputs, change something, then save again to compare the outcomes side by side.

Owing more than the car is worth.

With the defaults above, underwater by works out at $3,500.