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CDN Cost Calculator

Estimate CDN bandwidth cost from monthly transfer volume and per-GB delivery pricing.

Last reviewed: April 30, 2026Free toolMethodology

CDN Cost Calculator

These fields start with sample inputs. Keep them or replace them, then run the tool to show a fresh result.

Number fields accept plain values and common formatted input such as 250000, 250,000, or 1,234.56.

Result

Calculating the sample result.

Why it matters

CDN bills scale with traffic and media weight, so quick cost estimates help teams plan launches and performance work.

When to use

  • Forecasting traffic spikes
  • Comparing CDN providers
  • Measuring the savings from image or script optimization

Inputs & Outputs

Inputs

  • Monthly transfer is the number of billable GB delivered by the CDN.
  • Rate per GB is the provider's delivery price for the geography or tier you care about.

Outputs

  • Estimated CDN cost shows the monthly delivery bill under the assumptions used.
  • Cost per 100,000 visits gives a practical planning benchmark.

CDN cost method

Multiply the delivered transfer volume by the CDN's rate per GB.

CDN cost = delivered GB x rate per GB

Worked example

1

Launch estimate

A launch is expected to deliver 1,200 GB at a CDN rate of 0.08 per GB.

Inputs

  • Delivered GB: 1,200
  • Rate per GB: 0.08

Steps

  • CDN cost = 1,200 x 0.08 = 96

Result

  • Estimated CDN bandwidth cost is 96 for the month.

Edge cases & caveats

  • Some CDN plans include tiered or region-specific pricing.
  • Request fees and image optimization add-ons may be billed separately.

Frequently Asked Questions

How is this different from egress cost?

CDN cost focuses on edge delivery pricing. Egress cost is more often used for direct provider or origin transfer charges.

Should cache misses matter here?

They matter if you are also estimating origin traffic or egress. This calculator focuses on delivered edge bandwidth.

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