Inter Region Transfer Cost Calculator

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

About Inter Region Transfer Cost Calculator

Inter-region transfer is cheaper than internet egress but multiplies with replica count: replicating to two regions doubles the bill. Compression is applied before transfer, so it reduces the charge in direct proportion — a three-to-one ratio cuts two thirds of the cost, which is why replication protocols that compress on the wire matter financially as well as operationally.

Formula

Inter-region cost

compressed TB = data / compression ratio; total = compressed x replica regions; cost = total x 1000 x price per GB

Worked example

With the default values below, Inter Region Transfer Cost Calculator returns Monthly inter-region transfer cost of $333.33. Change any input above and every figure here is recalculated in your browser.

Inputs used

Data transferred between regionsminimum 0 TB: 25 TB
Inter-region price per GBminimum 0: 0.02
Regions receiving a copyaccepts 1–10: 2
Compression ratio appliedaccepts 1–20 x: 3 x

Results

Monthly inter-region transfer cost: $333.33
Data actually transferred: 16.67 TB
Saving from compression: $666.67
Annual cost: $4,000.00

Step by step

1Values used
2Inter-region cost
3Monthly inter-region transfer cost= 333.33
4Data actually transferred= 16.67 TB
5Saving from compression= 666.67
6Annual cost= 4,000.00

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, fees or charges 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 inter-region transfer charged at both ends?

Usually only egress from the source region is charged, but some services bill both directions. Check the specific service's pricing rather than assuming.

How is multi-region replication cost reduced?

Compress and deduplicate before transfer, replicate only what must be regional, and consider asynchronous replication of deltas rather than full snapshots.