CalcVerse

CDN Bandwidth Cost Calculator

CDN bandwidth is usually priced per GB and differs by region. Enter each region’s traffic and price; the calculator adds request charges and shows your blended price per GB.

Also called: CDN pricing calculator

  • Last updated
  • Formula tested against reference values

Your numbers

For example North America and Europe. GB here means a decimal gigabyte (1,000,000,000 bytes); 1 GiB = 1,073,741,824 bytes.

Example price only. Enter the current rate from your provider’s price list.

Example price only. Enter the current rate from your provider’s price list.

Example price only. Enter the current rate from your provider’s price list.

Result

Monthly CDN bill
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Calculating…

Bandwidth charges
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Request charges
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Total traffic
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Total traffic
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Blended bandwidth price per GB
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Full table

How to use this calculator

  1. Enter or choose region 1 traffic.
  2. Enter or choose region 1 price per GB.
  3. Enter or choose region 2 traffic.
  4. Enter or choose region 2 price per GB.
  5. Enter or choose region 3 traffic.
  6. The monthly CDN bill updates as you type. Use Copy result or Share to keep it.

Method

Bandwidth = Σ (Region GB × Region price); Requests = Requests ÷ 10,000 × Price; Blended = Bandwidth ÷ Total GB

Region GB
traffic served from that price region
Region price
your price per GB there

Worked example

  1. Region 1: 10,000 × 0.085 = 850; region 2: 5,000 × 0.11 = 550; bandwidth 1,400.
  2. Requests: 100,000,000 ÷ 10,000 = 10,000 × 0.0075 = 75.
  3. Bill: 1,400 + 75 = 1,475; blended 1,400 ÷ 15,000 = 0.0933 per GB.

At these example prices, 15,000 GB across two regions plus 100 million requests costs about 1,475 a month.

What the result means

The blended price per GB is the number to compare between CDNs and committed-use offers, because it reflects your actual traffic mix rather than a headline rate.

Assumptions and limits

  • Each region’s price is flat for the whole volume; enter an average if your provider uses volume tiers.
  • Origin fetch (cache-fill) charges, TLS certificates, edge compute and minimum commitments are not included.

Questions

Is 1 TB 1,000 GB or 1,024 GB?

CDNs normally bill in decimal units, so 1 TB = 1,000 GB. This calculator uses decimal units throughout.

Why is my request charge so high?

Sites serving many small files (icons, API calls, video segments) can pay more for requests than for bandwidth. Bundling and longer cache lifetimes help.