Factors Involved Price of AWS-EC2

*Clock hours of server time: Resources incur charges when they are running — for example, from the time Amazon EC2 instances are launched until they are terminated, or from the time Elastic IPs are allocated until the time they are de-allocated.

**Instance type: Amazon EC2 provides a wide selection of instance types optimized to fit different use cases. Instance types comprise varying combinations of CPU, memory, storage, and networking capacity.

**Pricing model: On-Demand, Reserved, Spot and Dedicated

**Number of instances: You can provision multiple instances of your Amazon EC2 and Amazon EBS resources to handle peak loads.

**Load balancing: The number of hours the Elastic Load Balancer runs and the amount of data it processes contribute to the monthly cost.

**Detailed monitoring: You can use Amazon CloudWatch to monitor your EC2 instances. By default, basic monitoring is enabled. For a fixed monthly rate, you can opt for detailed monitoring, which includes seven preselected metrics recorded once a minute.

**Elastic IP addresses: You can have one Elastic IP (EIP) address associated with a running instance at no charge. Additional Elastic IPs are not free.

**Operating systems and software packages: Operating system prices are included in instance prices, unless you choose to bring your own licenses.