The Internet Weighs About as Much as a Strawberry

How Can the Internet Weigh Anything?

All information on the internet is stored and transmitted using electrons — tiny particles with mass.

The Calculation

All those electrons add up to about 50 grams — roughly the weight of a single strawberry.

The servers, cables, and devices weigh millions of tons — but the actual data? One strawberry.

The Weight of Information

This thought experiment by physicist Russell Seitz estimates the mass of electrons in transit.

Two Approaches

Electrons in Transit

• ~5 × 10¹⁸ bytes actively transmitted at any moment
• Each byte requires ~8 electrons in motion
• Total: ~50 grams

Energy Perspective

The internet consumes ~1,000-1,500 TWh/year. Einstein's E=mc² suggests this adds about ~10 kg/year in mass-equivalent.

Key Points

• The "50 grams" is an order-of-magnitude estimate
• It highlights the distinction between information and infrastructure
• Your body's electrical signals also have negligible mass

Information, Mass, and Landauer's Principle

Landauer's principle (1961): Erasing one bit dissipates at least kT·ln(2) of energy. At room temperature: E_min = 2.85 × 10⁻²¹ J per bit.

Using E = mc²: m_per_bit = 3.17 × 10⁻³⁸ kg. For ~10²² bits total internet data: M ≈ 3.17 × 10⁻¹⁶ kg — vanishingly small.

Current computing operates ~10⁶× above the Landauer limit, suggesting enormous room for efficiency improvements.

Key Points

• The "strawberry" comparison serves more as pedagogy than physics
• Landauer's principle establishes a fundamental connection between information and thermodynamics
• The Bekenstein bound connects information physics to general relativity