The short answer on length
The Ming dynasty wall - the one most visitors see today - is about 8,851 km. Counting every known wall from every dynasty plus natural barriers and watchtower lines, the total is about 21,196 km, established by China's State Administration of Cultural Heritage in 2012.
- Drive time from Beijing: Reading time: 5 minutes
- Typical visit style: On a single section, visitors typically walk 2-12 km
- Difficulty: n/a - reference page
- Crowds: n/a
- Best for: Trivia and homework: 'how long is the Great Wall?'; Travelers comparing what they will actually walk on a day visit; Writers and researchers needing the dynasty breakdown
- Less ideal for: Visitors planning the day - jump to a section guide for on-wall distance
Great Wall length by dynasty
| Dynasty / era | Approximate length built | Notes |
|---|---|---|
| Qin (221-206 BCE) | ~5,000 km | First unified wall under Qin Shi Huang; rammed earth, mostly lost |
| Han (206 BCE-220 CE) | ~10,000 km | Westernmost expansion along the Silk Road; ruined remnants in Gansu |
| Northern dynasties (4th-7th c. CE) | ~1,500 km combined | Northern Wei, Qi, Zhou - patchwork additions |
| Sui (581-618 CE) | ~1,500 km | Reinforcement of older walls |
| Jin (1115-1234) | ~3,000 km | Defensive ditch-and-wall against Mongols |
| Ming (1368-1644) | ~8,851 km | The continuous wall most visitors see today, built in stone and brick |
| Total known (all dynasties) | ~21,196 km | 2012 official survey; counts earlier walls, ruins and barriers |
How was the 21,196 km figure measured?
China's State Administration of Cultural Heritage published the 21,196 km total in 2012 after a five-year archaeological survey that mapped every dynasty's wall, including ruined and underground sections. Earlier figures (around 8,000 km) only counted the Ming wall.
- Survey ran 2007 to 2012.
- Used GPS and ground surveys, not satellite alone.
- Counts walls, watchtowers, beacon platforms and natural barriers used defensively.
- Updates the older 'Ming-only' figure that schoolbooks still quote.
How much of the Great Wall is still standing?
Less than a third of the total, by length. Most surviving wall is Ming-era; older dynasties' walls have mostly eroded. About 8.2% of the wall is well preserved and restored - the parts visitors see at Mutianyu, Badaling, Jinshanling and similar.
- Ming wall: most of what survives in restored or hikeable condition.
- Restored open-to-public stretches: a few hundred km in total.
- Most of the remaining 'wall' is foundation, rubble, or rammed-earth ruins.
How much wall will I actually walk on a day visit?
Between 2 and 12 km depending on section and route. Mutianyu's restored ridge runs about 5.4 km tower-to-tower; Jinshanling to Simatai is roughly 10 km of restored wall. You will not walk a meaningful fraction of the total.
- Mutianyu, full ridge: ~5-6 km.
- Jinshanling, full restored hike: ~8-10 km.
- Jinshanling to Simatai (where open): ~10 km.
- Badaling, typical visitor walk: ~2-3 km.
Common mistakes about Great Wall length
Quoting one number out of context
Always pair the length with which dynasty you mean. '8,851 km' is Ming; '21,196 km' is all-dynasties total.
Confusing length with walkable length
Most of the 21,196 km is ruined or restricted. Visitors only walk a few km per day on restored sections.
Using older 6,000-8,000 km figures
Those were pre-2012 Ming-only estimates. The 2012 survey added everything earlier dynasties built.
Great Wall length FAQ
- About 8,851 km for the Ming dynasty wall; about 21,196 km when every known wall and barrier from every dynasty is counted.
- The smaller figure is just the Ming-era continuous wall. The larger figure counts older dynasties' walls, ruined fragments, beacon-tower lines and natural barriers integrated into the defensive system.
- By the State Administration of Cultural Heritage in a 2007-2012 archaeological survey using GPS and ground mapping. Earlier estimates relied on incomplete maps.
- Roughly 8.2% is well preserved; about a third still has visible wall on the ground. Most older-dynasty wall has eroded to foundation only.
- Not continuously - most of it is ruined or closed. End-to-end attempts have taken 12-18 months on foot with significant detours. See our dedicated 'can you walk the entire Great Wall' page.
- About 5.4 km of restored ridge, with watchtowers numbered 1 to 23. Most visitors walk 1.5-3 km of it.
Pick a section to walk
The number is interesting; the day is what matters. For a first visit, Mutianyu is the strongest default - restored, cable car, the right size to feel without overdoing it.
For hikers, Jinshanling gives the closest sense of distance, with 8-10 km of ridge wall and far smaller crowds.