Methodology & data sources
Transparency is the core of our E-E-A-T. This page documents where FunctionPriceBook's data comes from, when it was captured, and the exact formulas behind every estimate.
What we cover
We track 17 serverless / function-as-a-service platforms: request-priced FaaS (AWS Lambda, Azure Functions, Cloudflare Workers, Google Cloud Functions, Scaleway, DigitalOcean Functions, Supabase Edge Functions, Deno Deploy), serverless containers (Google Cloud Run, Azure Container Apps, AWS Fargate), and scale-to-zero compute platforms (Fly.io Machines, Modal, Render, Railway, Vercel Functions, Netlify Functions). This is deliberately distinct from object-storage / VPS pricing, managed-Kubernetes pricing and managed-database pricing.
Data sources
Every figure is a dated snapshot (June 2026) taken directly from each vendor's own published pricing page. We do not pull live prices — serverless pricing is volatile, so each provider page shows the snapshot date and links to the source, and we ask you to verify before relying on a number.
| Source | Refresh cadence | License |
|---|---|---|
| AWS Lambda pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Cloudflare Workers pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Google Cloud Run pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Google Cloud Functions pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Azure Functions pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Vercel pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Netlify pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| AWS Fargate pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Deno Deploy pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Fly.io pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Supabase pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Modal pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Scaleway Serverless pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| DigitalOcean Functions pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Render pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
| Railway pricing | Static snapshot (manual) | Vendor pricing page (snapshot) |
How calculations work
The worked examples, scenarios and calculator all use the same transparent formula:
GB-seconds = requests × (duration_ms / 1000) × (memory_MB / 1024)
compute = max(0, requests − free_requests) / 1,000,000 × price_per_1M_requests
+ max(0, GB−seconds − free_GB−seconds) × price_per_GB_second
+ (CPU−metered only) max(0, vCPU−seconds − free) × price_per_vCPU_second
total = compute + egress_GB × egress_rate
- CPU-metered platforms (Cloud Run, Cloud Functions 2nd gen, Azure Container Apps) split CPU and memory; we assume 1 vCPU allocated during active execution.
- Free tiers are subtracted before pricing, which is why most small workloads estimate at $0.
- Resource-time platforms (AWS Fargate, Render, Railway, Fly.io Machines) bill by vCPU-hour, per-minute or instance-hour, not per request. We do not fabricate a per-request figure for them — they are shown as "Not request-priced" / "Usage-based" and excluded from per-request rankings and the calculator.
- Currency: prices are in USD. Scaleway publishes in EUR; its USD figures are approximate conversions and flagged as such.
What the estimates exclude
Platform minimums (e.g. Cloudflare Workers Paid $5/mo, Vercel Pro $20/seat, Deno Deploy/Modal credits), cold-start behaviour, per-100ms billing rounding, request/response payload sizes, API-gateway and NAT-gateway charges, storage, support plans and regional price differences. Treat every figure as an order-of-magnitude estimate, not a quote.
Limitations & corrections
Figures are estimates for general information and may lag the underlying source or contain errors. Always verify against the vendor's pricing page before relying on them. Spotted something out of date? Tell us and we'll fix it. See also our disclaimer.
Last updated: 2026-06-21