Derived Metrics Model

Some global statistics are not directly reported by any single primary source — they are derived by combining two authoritative indicators: a reference base and an official percentage ratio. This page documents the model, its inputs, and which metrics use it.

The Formula

The model multiplies an absolute reference base by an official percentage-based ratio, both sourced independently from authoritative organizations.

Derivedtotal=Basereference×Ratioofficial

Both inputs must come from independent, authoritative primary sources. The ratio is applied as a decimal (e.g. 57% becomes 0.570). Real-time projection is then applied using the Continuous Growth Model to estimate the current value between official data releases.

Metrics Using This Model

The following statistics on this platform are calculated using this model.

Urban Population

Active
Urban Population = World Population × Urban Population (%)

Base: World Population

UN Population Division via World Bank

SP.POP.TOTL

Ratio: Urban Population (%)

UN World Urbanization Prospects via World Bank

SP.URB.TOTL.IN.ZS

Example (2024): 8,118,235,421 × 0.570 = 4,627,394,190 urban residents

View live counter

Internet Users

Active
Internet Users = World Population × Internet Users (%)

Base: World Population

UN Population Division via World Bank

SP.POP.TOTL

Ratio: Internet Users (%)

International Telecommunication Union (ITU) via World Bank

IT.NET.USER.ZS

Example (2024): 8,118,235,421 × 0.662 = 5,374,271,848 internet users

View live counter

Transparency & Limitations

Strengths

Both inputs are sourced from official UN and ITU data, publicly available and independently verifiable. The calculation is fully auditable.

Annual data lag

Percentage-based ratios are released annually with a 6–18 month lag. The real-time projection applies a compound growth rate to estimate the current value.

Uniform growth assumption

Growth rates are assumed constant between official releases. Regional and seasonal variation is not captured at the global aggregate level.

These counters are educational tools designed to visualize the scale of global phenomena. They use a transparent, auditable method based on the latest official data.

Other Methodologies

All data models and curation principles are documented transparently.

Methodology Hub

Core principles of data curation, source provenance, and UI transparency.

Continuous Growth Model

Real-time projection of exponential metrics like GDP using compound growth formulas.

Linear Daily Accumulation

Daily counters that reset at midnight — Births Today, Deaths Today.

Linear Yearly Accumulation

Yearly counters that reset on Jan 1st — Births This Year, CO₂ This Year.

Derived Metrics Model | Methodology | caiodemelo.org