Instance hourly rates are published on the compute pricing page. Monthly estimates assume 730 billable hours. Stopped instances are not charged for compute. Dedicated servers are prepaid: pay the invoice first, then we provision in 4 to 36 hours. The listed monthly rate is a 750-hour block.
Reserved capacity and savings plans (1, 12, or 36 months) can lower Instance rates on production families. Dedicated servers stay prepaid monthly or annual. Contact support for a proposal that matches your growth plan.