How Much Did the Suez Canal Shorten the India–Europe Sea Route?

The opening of the Suez Canal in 1869 did not reduce the distance by 7,000 km. It shortened the sea route by approximately 7,000 nautical miles (≈12,964 km).

Before vs. After

• Pre-Suez (via Cape of Good Hope): London → Mumbai ≈ 11,000 nmi (20,370 km).
• Post-Suez: London → Mumbai ≈ 4,000 nmi (7,400 km).
• Savings: ~7,000 nmi (~13,000 km) — about 40–45% shorter.

Why the Distinction Matters

• Nautical miles (1 nmi = 1.852 km) are standard in maritime navigation.
• The 7,000 km figure understates the true saving by nearly half.

Impact

• Cut voyage time from ~3 months to ~3 weeks.
• Slash freight costs, accelerating European–Asian trade.
• Cemented British imperial dominance in Indian Ocean.
• Spurred Port Said, Suez, Aden, Colombo as coaling/steaming hubs.

The Suez Canal remains one of history's most consequential geographic shortcuts—measured correctly in nautical miles.