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Multi Region Cost Calculator

Work out multi region cost instantly with clear inputs, formula shown and shareable results.

About Multi Region Cost Calculator

Multi-region cost is not simply regions times single-region cost, because some components — a global control plane, CI, monitoring, shared tooling — stay in one place. The addition that catches people out is inter-region data transfer, which grows with replication volume and can become a significant line on a chatty architecture.

Formula

Multi-region cost

replicated = single-region cost x (1 - shared share); total = replicated x regions + shared + inter-region transfer

Worked example

With the default values below, Multi Region Cost Calculator returns Monthly multi-region cost of $78,600.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Single-region monthly costminimum 0
30,000
Regionsaccepts 1–10
3
Inter-region traffic per monthminimum 0 TB
30 TB
Share of cost that stays single-regionaccepts 0–100 %
20 %

Results

Monthly multi-region cost
$78,600.00
Replicated infrastructure
$72,000.00
Inter-region transfer
$600.00
Cost multiplier versus one region
2.62 x

Step by step

  1. 1Values used
  2. 2Multi-region cost
  3. 3Monthly multi-region cost= 78,600.00
  4. 4Replicated infrastructure= 72,000.00
  5. 5Inter-region transfer= 600.00
  6. 6Cost multiplier versus one region= 2.62 x

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Is multi-region worth the cost?

It depends whether the business genuinely requires surviving a regional failure. Most availability incidents are application bugs, which multi-region deployment does not fix and may complicate.

What is the hardest part of multi-region?

Data consistency. Compute is easy to replicate; deciding what happens to writes during a partition is the genuinely difficult design problem.

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