Railways:
Total: 4,294 km
Standard gauge: 4,049km of 1.435m gauge (2,710km electrified, 917km double track)
Narrow gauge: 245km of 0.760m gauge

Roads:
Total: 36,759km
Paved: 33,818km (including 319km of expressways)
Unpaved: 2,941km (1998 est.)

Waterways:
470km

Pipelines:
Petroleum products: 525km
Natural gas: 1,500km

Major Ports and harbours:
Black Sea: Bourgas, Varna, Nessebar
Danube: Lom, Rousse, Vidin

Merchant marine: (1999 est.)
Total: 85 ships (1,000 GRT or over) totalling 947,711 GRT/1,449,416 DWT
Ships by type: bulk 43, cargo 18, chemical tanker 4, container 2, passenger/cargo 1, petroleum tanker 7, rail car carrier 2, refrigerated cargo 1, roll-on/roll-off 5, short-sea passenger 1, specialized tanker 1

Airports: 216 total

Airports with paved runways: 129 total
By elevation:
over 3,047m: 1
2,438 to 3,047m: 19
1,524 to 2,437m: 15
914 to 1,523m: 1
under 914m: 93

Airports with unpaved runways: 87 total
By elevation:
1,524 to 2,437m: 2
914 to 1,523m: 10
under 914m: 75