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About this tool
Compute Cloudflare Workers and KV cost from requests, CPU time, reads, writes, lists and storage on the Paid plan.
This calculator estimates a Cloudflare Workers Paid plan bill: $5/month base including 10 million requests and 30 million CPU-milliseconds, with overage at $0.30 per million requests and $0.02 per million CPU-ms, plus Workers KV metering ($0.50 per million reads, $5 per million writes, $0.50 per GB-month stored beyond the included allowances). It is for developers moving APIs and edge logic onto Workers who want to see the bill before the traffic arrives.
Open Cloudflare Workers Cost Calculator on AltFTool — it loads instantly in your browser.
Enter the values you already know.
Fine-tune the options to match your scenario.
Read the result and use it in your planning or reporting.
Charges only CPU-ms, matching Workers' model where fetch wait time is free.
Reads, writes, deletes, lists and storage each priced with their own allowance.
No bandwidth line item — Workers responses carry no per-GB egress fee.
The Workers Paid plan is $5/month and includes 10 million requests and 30 million CPU-milliseconds. Beyond that, requests bill at $0.30 per million and CPU time at $0.02 per million CPU-milliseconds; the free plan instead allows 100,000 requests per day with a 10 ms CPU limit per invocation.
No — there is no per-GB egress fee on Workers responses, unlike AWS Lambda behind API Gateway where data transfer out starts at $0.09/GB. You pay only for requests and CPU time, which is why bandwidth-heavy APIs are often much cheaper on Workers.
Only time the CPU actively executes your JavaScript or WebAssembly — time spent waiting on fetch(), KV or other I/O is not billed. Most Workers use 1–10 ms of CPU per request, and the platform caps a single invocation at 5 minutes (300,000 ms) of CPU on the paid plan.
On the paid plan KV includes 10 million reads, 1 million each of writes, deletes and lists, and 1 GB of storage per month. Overage bills at $0.50 per million reads, $5.00 per million writes, deletes or lists, and $0.50 per GB-month — writes cost 10× reads, so write-heavy workloads may fit Durable Objects or D1 better.
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