Skip to main content

We earn commissions when you shop through the links below. Details

Developer

AWS Cost Estimator

Free AWS cost estimator — estimate monthly EC2 compute, S3 storage, and data transfer costs.

Important: By using this page, you agree that calculator, estimator, or tool results, charts, About explanations, quick tips, and formulas are for informational use only — not professional advice. You assume all risks of relying on them. See the full disclaimer below and our Terms of Service.

Loading tool…

How it works

Select an EC2 instance type preset, enter instance count, hours, S3 storage, and outbound data transfer for a monthly AWS bill estimate.

About AWS Cost Estimator

Informational only — not professional advice. Report an error.

Your first real AWS bill is a rite of passage. You spun up a few EC2 instances for a class project or side app, left them running, and suddenly compute, storage, and data transfer each show up as separate line items that add up faster than you expected. AWS bills combine three things that scale independently: virtual machines running 24/7, object storage that grows with every backup and static asset, and outbound data transfer to the public internet — bandwidth that felt free on your home network but is not free in the cloud.

This AWS cost estimator estimates monthly EC2 compute, S3 storage, and egress using the same simplified structure as a real AWS bill. Presets approximate US East on-demand rates for common instance types like t3.micro through m5.large, with default storage and bandwidth pricing aligned to S3 Standard and typical egress tiers. Enter instance count, hourly rate, hours per month (730 for always-on), storage gigabytes, and outbound gigabytes.

Compute cost is linear: more instances, a higher hourly price, or longer runtime all multiply together. Storage is charged per GB-month. Bandwidth charges apply to data leaving AWS to the internet; traffic within the same region or to CloudFront may be priced differently. Reserved Instances, Savings Plans, and Spot change the effective hourly rate — enter your blended number rather than raw on-demand if you have commitments.

Use results to sanity-check autoscaling designs before you deploy. If egress dominates, consider adding a CDN or compressing payloads. If storage dominates, lifecycle policies and Intelligent-Tiering matter more than instance size. RDS, Lambda, NAT Gateway, and Elastic IP charges sit outside this VM-centric estimate — add 20–40% for a realistic production stack if those services apply.

Compare against Azure and GCP calculators on equivalent VM sizes when multi-cloud proposals require side-by-side numbers. After deployment, use AWS Cost Explorer with resource tags to replace calculator assumptions with actuals — the goal here is a directional budget for architecture reviews and startup financial models, not a line-by-line replacement for the full AWS Pricing Calculator.

Quick tips

  • 730 hours = full month of 24/7 runtime; use lower hours for dev environments that shut down nightly.
  • Enter your effective EC2 rate after Reserved Instance or Savings Plan discounts.
  • Egress to the internet is often the surprise line item — estimate CDN offload separately.
  • Presets target US East; EU and APAC regions can run 10–30% higher for the same instance.
  • Compare with Azure and GCP cost estimators before committing to a single cloud vendor.

Formulas

  • computeCost = instances × pricePerHour × hoursPerMonth
  • storageCost = storageGb × storagePricePerGb
  • bandwidthCost = bandwidthGb × bandwidthPricePerGb
  • totalMonthly = computeCost + storageCost + bandwidthCost

This tool is part of the free Developer collection on FindMeTool. Explore more Developer tools or browse the full tool directory.

FAQ

Which AWS services are included?
EC2 compute, S3 storage, and outbound data transfer. Add other services manually to your budget.
Are Reserved Instances included?
Use your effective on-demand or reserved hourly rate in the price field.
What region are prices for?
Presets approximate US East on-demand rates — adjust for your region.