# Cloud Egress Cost Calculator

> Work out the monthly cost of data transferred out of a cloud provider with a free allowance and tiered per-GB prices that you enter from your provider’s price list.

Category: IT, networking & security · Applies to: Worldwide · Last updated: 2026-10-29
Interactive calculator: https://calculators.geekmidst.com/calculators/cloud-egress-cost-calculator

Cloud providers usually charge for data leaving their network in tiers: a free allowance, then a price per GB that falls as volume rises. Enter your provider’s current tiers; the defaults are examples only.

Also called: Data transfer out cost calculator, Egress fee calculator.

## Inputs
- Data transferred out this month (unit GB; default 15000)
- Free allowance (unit GB; default 100; optional)
- Tier 1: next (unit GB; default 10240)
- Tier 1 price per GB (default 0.09)
- Tier 2: next (unit GB; default 40960; optional)
- Tier 2 price per GB (default 0.085; optional)
- Price per GB beyond tier 2 (default 0.07)
- Currency

## Results
- Egress cost this month
- Billable GB
- Free allowance used
- Effective cost per GB
- Annual cost at this volume

## Formula

```
Billable = max(0, GB − Free);  Cost = min(Billable, T1) × P1 + min(remaining, T2) × P2 + remaining × P3
```

Where:
- T1, T2: sizes of the first and second tiers in GB
- P1, P2, P3: price per GB in each tier

## Worked example
1. Billable = 15,000 − 100 free = 14,900 GB.
2. Tier 1: 10,240 × $0.09 = $921.60.
3. Tier 2: the remaining 4,660 × $0.085 = $396.10, so the total is $1,317.70.

**Result:** Sending 15,000 GB out with these example tiers costs $1,317.70 a month, about $0.0878 per GB.

## What the result means

Egress is often the hidden cost in multi-cloud and hybrid designs. A CDN, caching or keeping chatty services in the same region can cut it more than negotiating rates.

## Assumptions and limits
- Tiers apply to the month’s total volume in order after the free allowance.
- Inter-region, inter-zone, CDN and private-link transfers are usually priced differently; calculate each separately.
- Taxes are not included.

## Questions

### Is inbound data free?

With most large providers, data transfer in is free or very cheap, but check your provider’s price list.

### Do tiers reset each month?

Usually yes: tier thresholds apply to the volume in each billing month.

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Source: GM¹X CalcVerse — https://calculators.geekmidst.com/calculators/cloud-egress-cost-calculator