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Cloud cost & capacity tools

Estimate spend and sizing with transparent assumptions. Use results for planning and comparisons.

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Start with a driver (not a price table)

Most cloud bills are dominated by a few measurable drivers: requests/month, GB transferred, GB-month stored, and instance-hours. Start with drivers and an effective rate, then refine with tiering and region mix once the model is directionally correct.

Estimation checklist Methodology Units converter

A simple workflow

  1. Estimate requests/month and GB/month.
  2. Estimate compute (instance-hours or vCPU/RAM hours).
  3. Add storage and retention (GB-month) and replication/copies.
  4. Validate against a real week of billing/metrics and adjust.
RPS to monthly requests Egress cost Log cost Object storage cost

How to get your inputs

  • Requests: API gateway or load balancer metrics (RPS and totals).
  • Transfer: egress/transfer usage types in billing exports (GB).
  • Storage: average GB-month from storage metrics, not just end-of-month size.
  • Compute: instance-hours and uptime schedules from billing data.

How to use calculators responsibly

  • Start with a measurable driver and a blended rate.
  • Document assumptions for rates, regions, and schedules.
  • Run baseline and peak scenarios before you optimize.
  • Validate with a real week of billing and update your model.
FinOps
AWS SNS Cost Calculator
Estimate messaging cost from publish volume, delivery volume, and optional payload transfer.
SNS Delivery Volume Estimator
Estimate SNS delivery volume from publishes, fan-out, and retry multipliers.
AWS SES Cost Calculator
Estimate email sending cost from volume and optional payload transfer assumptions.
AWS KMS Cost Calculator
Estimate KMS costs from key-months and request volume.
KMS Request Volume Estimator
Estimate KMS request volume from workload units and call rates.
AWS SSM Parameter Store Cost Calculator
Estimate Parameter Store costs from advanced parameter count and API call volume.
AWS Secrets Manager Cost Calculator
Estimate Secrets Manager costs from secret-months and API call volume.
AWS Fargate Cost Calculator
Estimate Fargate-style compute cost from vCPU-hours and memory GB-hours.
AWS Lambda vs Fargate Cost Calculator
Compare Lambda vs Fargate compute costs side-by-side from your inputs.
AWS Fargate vs EC2 Cost Calculator
Compare Fargate vCPU/GB-hours vs EC2 instance-hours from your inputs.
ECS on EC2 vs ECS on Fargate Cost Calculator
Compare ECS on EC2 vs ECS on Fargate compute costs from your inputs.
ECS Task Sizing Calculator
Estimate required ECS task count from vCPU/memory demand and per-task sizing.
Reserved vs On-demand Break-even Calculator
Find the utilization point where a commitment beats on-demand pricing.
Compute Instance Cost Calculator
Estimate monthly compute cost from instance count, $/hour, and expected uptime.
AWS Lambda Cost Calculator
Estimate Lambda-style request + GB-seconds compute cost from your inputs.
AWS RDS Cost Calculator
Estimate RDS-style cost from instance hours, storage, backups, and I/O assumptions.
AWS DynamoDB Cost Calculator
Estimate DynamoDB-style read/write request + storage costs from your inputs.
AWS EBS Cost Calculator
Estimate EBS-style storage + optional IOPS/throughput costs from your inputs.
AWS SQS Cost Calculator
Estimate SQS-style request cost from messages and requests per message.
SQS Request Volume Estimator
Estimate SQS request volume from messages, retries, and extra API calls.
RPS to Monthly Requests Calculator
Estimate monthly request volume from RPS, hours/day, and utilization.
Kubernetes
Kubernetes Cost Calculator
Estimate cluster cost by sizing nodes from requests and pricing them.
EKS Cost Calculator
Estimate EKS-style cost from node sizing and pricing assumptions.
Kubernetes Observability Cost Calculator
Estimate log + metrics observability costs for Kubernetes.
Kubernetes Requests & Limits Calculator
Convert per-pod requests/limits into cluster totals and node sizing estimates.
Kubernetes Node Cost Calculator
Estimate cluster monthly cost from node count and per-node hourly pricing.
Logging
AWS CloudTrail Cost Calculator
Estimate CloudTrail-style event costs from event volume and per-100k pricing inputs.
API Gateway Access Log Cost Calculator
Estimate access log ingestion + retention cost from request volume and log size.
Log Ingestion Cost Calculator
Estimate monthly log ingestion cost from GB/day or from event rate and $/GB pricing.
Log Cost Calculator
Estimate total log costs: ingestion, storage, and scan/search.
Tiered Log Storage Cost Calculator (Hot + Archive)
Estimate log storage cost using a hot window plus an optional cold/archive tier.
CloudWatch Logs Cost Calculator
Estimate CloudWatch-style log costs: ingestion, retention storage, and optional Insights scans.
CloudWatch Logs Insights Cost Calculator
Estimate Logs Insights query scan cost from GB scanned per day and $/GB.
CloudWatch Metrics Cost Calculator
Estimate CloudWatch metrics cost from custom metrics, alarms, dashboards, and API requests.
AWS CloudWatch Alarms Cost Calculator
Estimate alarm-month charges from standard, high-resolution, and composite alarm counts.
Log Retention Storage Cost Calculator
Estimate retained log storage cost from GB/day, retention days, and $/GB-month pricing.
Log Search Scan Cost Calculator
Estimate monthly scan charges from GB scanned per day and $/GB pricing.
Metrics Time Series Cost Calculator
Estimate monthly metrics cost from active series and $ per series-month pricing.
Networking
CDN Cost Calculator
Estimate total CDN cost from bandwidth and request pricing.
CDN Origin Egress Calculator
Estimate origin egress and requests from CDN edge volume and cache hit rate.
CloudFront Cost Calculator
Estimate CDN cost for CloudFront-style pricing assumptions.
VPC Data Transfer Cost Calculator
Estimate data transfer spend from GB/month and $/GB assumptions.
AWS NAT Gateway Cost Calculator
Estimate NAT gateway hourly + per-GB processed costs from your inputs.
AWS Load Balancer Cost Calculator (ALB/NLB)
Estimate load balancer fixed + LCU/NLCU usage costs from your inputs.
AWS API Gateway Cost Calculator
Estimate API Gateway-style cost from request volume plus response transfer assumptions.
API Gateway Request Volume Estimator
Estimate API Gateway request volume from baseline RPS and peak traffic windows.
AWS WAF Cost Calculator
Estimate WAF-style costs from Web ACLs, rules, and request volume.
WAF Request Volume Estimator
Estimate evaluated WAF requests from baseline traffic and attack spikes.
AWS Route 53 Cost Calculator
Estimate DNS costs from hosted zones, query volume, and health checks.
Data Egress Cost Calculator
Estimate monthly egress spend from GB transferred and $/GB pricing.
CDN Bandwidth Cost Calculator
Estimate monthly CDN bandwidth cost from GB transferred and $/GB pricing.
Cross-region Transfer Cost Calculator
Estimate monthly cross-region transfer cost from GB transferred and $/GB pricing.
API Response Size Transfer Calculator
Estimate monthly transfer from request volume and average response size.
CDN Request Cost Calculator
Estimate CDN request fees from monthly requests and $ per 10k/1M pricing.
API Request Cost Calculator
Estimate request-based charges from monthly requests and $ per million.
AWS ALB LCU / NLB NLCU Calculator
Estimate LCU/NLCU capacity units per hour from connections and bytes processed.
Storage
AWS ECR Cost Calculator
Estimate ECR-style cost from stored GB-month plus data transfer assumptions.
AWS EBS Snapshot Cost Calculator
Estimate snapshot storage cost from volume size, churn, and retention.
AWS S3 Glacier / Deep Archive Cost Calculator
Estimate archive storage cost from stored GB-month plus retrieval GB and request assumptions.
Storage Pricing Calculator
Estimate object storage pricing from GB-month, requests, and egress.
S3 Cost Calculator
Estimate S3-like storage costs: storage, requests, egress, replication.
Object Storage Cost Calculator
Estimate storage and request costs (GET/PUT) for S3-like object storage.
S3 Request Cost Calculator
Estimate S3-like request costs (GET/PUT) from monthly request volume.
S3 Replication Cost Calculator
Estimate replication fee from replicated GB/month and $/GB assumptions.
Storage Replication Cost Calculator
Estimate replication transfer/storage cost from replicated GB and $/GB pricing.
Database Storage Growth Cost Calculator
Estimate storage growth over time and the average monthly cost.
Units
Cloud Units Converter
Convert GB↔GiB, Mbps↔MB/s, and estimate monthly transfer from throughput.

Result interpretation

  • Use results for directional planning and comparisons, then validate against billing data.
  • Start with an effective rate and tighten assumptions after you confirm the main drivers.
  • Keep baseline and peak scenarios to avoid budget surprises during traffic spikes.
  • Document assumptions so results are easy to update when rates or usage change.

Scenario planning

  • Baseline: average usage, standard uptime hours, normal retry rates.
  • Peak: 2x-4x requests and transfer for launches or incidents.
  • Growth: add a monthly growth rate for storage and request volume.
  • Compare: run scenarios side by side before changing architecture.

Validate after changes

  • Compare estimated drivers to billing usage types (requests, GB, hours).
  • Re-check after routing, caching, or retention changes.
  • Validate a representative week before trusting monthly totals.
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FAQ

Do you store my inputs?
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Are these official quotes?
No. Results are simplified estimates for planning. Always verify pricing tiers, regions, free allowances, and rounding rules in provider docs.