Regional Traffic Distribution Calculator
Split monthly traffic across world regions, find the busiest one and size its peak bandwidth from the share.
About Regional Traffic Distribution Calculator
Shares are normalised rather than trusted, so an input set that adds to 96% or 104% still produces a consistent split. Each region's peak is derived from its own average bit rate, because regional prime times do not overlap — the global peak is always less than the sum of regional peaks. CDN pricing is regional and per-GB rates in Asia-Pacific and South America are often two to four times the North American rate, so the distribution — not just the total — drives both cost and where you place capacity.
Formula
Regional Traffic Distribution
region traffic = total × region share ÷ sum of shares; region peak Gbps = region TB × 8,000 ÷ seconds in the month × peak-to-average ratio.
- sum of shares
- Declared shares are normalised so they always add to 100%
- peak-to-average ratio
- Busy-hour multiple applied to the region's own average
- busiest region
- The region that sets your largest single-region capacity requirement
Worked example
With the default values below, Regional Traffic Distribution Calculator returns Busiest Region Traffic of 126.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Total traffic deliveredaccepts 0–10,000,000 TB/month
- 300 TB/month
- North America shareaccepts 0–100 %
- 42 %
- Europe shareaccepts 0–100 %
- 26 %
- Asia-Pacific shareaccepts 0–100 %
- 22 %
- Latin America shareaccepts 0–100 %
- 6 %
- Africa, Middle East and elsewhereaccepts 0–100 %
- 4 %
- Peak-to-average ratioaccepts 1–20 ×
- 3.5 ×
Results
- Busiest Region Traffic
- 126.00 TB/month
- Busiest Region
- North America
- Busiest Region Peak Bandwidth
- 1.361 Gbps
- Declared Shares Total
- 100.0%
- North America Traffic
- 126.00 TB/month
- Europe Traffic
- 78.00 TB/month
- Asia-Pacific Traffic
- 66.00 TB/month
- Remaining Regions Traffic
- 30.00 TB/month
Step by step
- 1Values used
- 2Regional Traffic Distribution
- 3Busiest Region Traffic= 126.00 TB/month
- 4Busiest Region= North America
- 5Busiest Region Peak Bandwidth= 1.361 Gbps
- 6Declared Shares Total= 100.0
- 7North America Traffic= 126.00 TB/month
- 8Europe Traffic= 78.00 TB/month
Assumptions and limits
- The result is derived only from the 7 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 3 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
How is Regional Traffic Distribution calculated?
region traffic = total × region share ÷ sum of shares; region peak Gbps = region TB × 8,000 ÷ seconds in the month × peak-to-average ratio. Shares are normalised rather than trusted, so an input set that adds to 96% or 104% still produces a consistent split. Each region's peak is derived from its own average bit rate, because regional prime times do not overlap — the global peak is always less than the sum of regional peaks.
Why does Regional Traffic Distribution matter?
CDN pricing is regional and per-GB rates in Asia-Pacific and South America are often two to four times the North American rate, so the distribution — not just the total — drives both cost and where you place capacity.
What values do I need to enter?
This calculator takes 7 inputs: Total traffic delivered, North America share, Europe share, Asia-Pacific share, Latin America share, Africa, Middle East and elsewhere, Peak-to-average ratio. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.