Serverless Compute Cost Calculator (2026)
Benchmark your monthly cloud infrastructure bill across Cloudflare Workers, AWS Lambda, and Hetzner Dedicated VPS based on requests, CPU duration, and egress bandwidth.
The 2026 Serverless Economics Breakdown
When architecting modern API endpoints, webhooks, and data transformation pipelines, engineering leaders face a critical trade-off between hyperscaler serverless (AWS Lambda), edge compute (Cloudflare Workers), and self-hosted containerized compute (Hetzner VPS).
While serverless advertising promises “pay only for what you use,” production telemetry reveals that hidden egress bandwidth fees, memory padding, and provisioned concurrency frequently inflate AWS Lambda bills to 5x to 15x the cost of self-hosted alternatives.
1. The AWS Egress Bandwidth Trap
AWS Lambda compute execution is relatively affordable at $0.20 per million requests. However, outbound data transfer from AWS EC2/Lambda to the public internet costs $0.09 per GB after the initial free tier. In contrast, Cloudflare Workers charges $0.00 for outbound egress, making edge workers vastly superior for high-payload JSON responses, server-side tracking events (Meta CAPI / GA4), and media streaming.
2. Edge Execution vs Dedicated VPS: When to Switch
| Traffic Volume | Optimal Compute Tier | Typical Monthly Cost | Key Architectural Advantage |
|---|---|---|---|
| Under 5M requests/mo | Cloudflare Workers (Free / $5) | $0 – $5.00 / month | Zero server management, sub-5ms edge cold starts |
| 5M to 50M requests/mo | Cloudflare Workers Paid | $5.00 – $17.00 / month | Zero egress fees, automated global CDN caching |
| 50M+ requests / Stateful tasks | Hetzner Cloud VPS (Docker) | €4.49 – €11.90 / month | Fixed cost, 20TB bandwidth, zero execution timeouts |
Related Systems Architecture Blueprints
To implement these architectural patterns in production, explore our verified engineering guides:
- Meta CAPI Pipeline: How to Deploy Meta Conversions API (CAPI) on Cloudflare Workers
- Server-Side GTM Pipeline: How to Deploy Server-Side GTM on Hetzner with Docker
- Self-Hosted Stack Blueprint: Self-Hosted Business Infrastructure Guide (2026): Ditching Cloud SaaS Fees
- Developer Productivity Guide: AI Coding Agents & Developer Productivity Guide (2026)
Mamun Hossain
Systems ArchitectFounder of Zelobiz & Enterprise Infrastructure Architect. Specializing in autonomous software engineering workflows, server-side tracking pipelines, and high-performance self-hosted infrastructure.