AWS pricing

AWS pricing can feel a bit overwhelming at first, but it’s designed to be flexible and on a "pay-as-you-go" basis
AWS has several pricing models which you can choose from based on your business and infrastructure needs

Pricing models
On-Demand-Pay for compute or storage by the hour or second with no long-term commitment.
Savings Plans- Commit to consistent usage (measured in $/hour) for 1 or 3 years for up to 72% savings.
Reserved Instances (RIs)-Reserve 1 or 3 years capacity for EC2, RDS, etc. with significant discounts.
Spot Instances-Bid on unused EC2 capacity at reduced prices (can be up to 90% cheaper).
Free Tier-AWS offers a free tier for 12 months for new users and an always-free tier for certain services.

Key Pricing Factors
Compute
EC2 pricing is based on the instance type, region, OS, and pricing model (On-Demand, Reserved, Spot).
Lambda pricing is based on the number of requests and execution time.
Storage:

S3 pricing depends on storage class (Standard, Infrequent Access, Glacier), storage amount, PUT/GET requests, and data transfer.
Data Transfer:

Data transfer is usually free.
Data transfer out to the internet is charged per GB beyond the free tier.
Networking:
Services like AWS CloudFront (CDN) and Route 53 (DNS) have separate pricing models.
VPC peering and NAT Gateway usage are also chargeable.
Other Services:

Managed databases (RDS), container services (ECS/EKS), machine learning (SageMaker), and security services (WAF, Shield) all have individual pricing models.

1. Pricing Calculator
2. AWS Pricing Calculator

You can estimate costs based on your specific use case.

1. Tips for Reducing AWS Costs
2. Use Spot Instances for non-critical workloads. -Right-size your EC2 instances and leverage Savings Plans. -Use S3 lifecycle policies to move older data to Glacier. -Monitor costs with AWS Cost Explorer. -Set up billing alerts and budgets.