Billing for interrupted Spot Instances

When a Spot Instance is interrupted, you're charged for instance and EBS volume usage, and you might incur other charges, as follows.

Instance usage

Who interrupts the Spot Instance	Operating system	Interrupted in the first hour	Interrupted in any hour after the first hour
If you stop or terminate the Spot Instance	Windows and Linux (excluding SUSE)	Charged for the seconds used	Charged for the seconds used
	SUSE	Charged for the full hour even if you used a partial hour	Charged for the full hours used, and charged a full hour for the interrupted partial hour
If the Amazon EC2 interrupts the Spot Instance	Windows and Linux (excluding SUSE)	No charge	Charged for the seconds used
	SUSE	No charge	Charged for the full hours used, but no charge for the interrupted partial hour

EBS volume usage

While an interrupted Spot Instance is stopped, you are charged only for the EBS volumes, which are preserved.

With EC2 Fleet and Spot Fleet, if you have many stopped instances, you can exceed the limit on the number of EBS volumes for your account.