So, you wanna know who's got more subs? China or the US? It's not as simple as counting hulls. As of 2024, the People's Liberation Army Navy (PLAN) – that's China – runs the biggest submarine fleet by raw numbers. But the United States Navy (USN)? They've got the tech, the power, the scary stuff. Here's the breakdown on fleet sizes, what these boats can actually do, and why it all matters. The US Department of Defense's 2023 report says China has around 60 subs. That's a mix of nuclear attack boats (SSNs), nuclear ballistic missile subs (SSBNs), and a whole bunch of diesel-electric ones (SSKs). The US Navy? 68 subs. All nuclear. Fifty-three of those are attack subs – Los Angeles, Seawolf, Virginia classes. Then 14 Ohio-class ballistic missile boats, plus four converted Ohio guided missile subs (SSGNs). So here's the thing – China has more total hulls if you count everything. But the US has way more nuclear-powered vessels. And those US boats? Newer, quieter, loaded with better sensors and weapons. It's not even close in some ways. China's strategy is all about anti-access/area denial (A2/AD). They want to keep US ships out of their backyard – the Taiwan Strait, South China Sea. So they build cheap diesel-electric subs, lots of 'em. These things lurk in shallow waters, waiting to ambush carrier groups. Reasons behind it: Absolutely. Every single US sub is nuclear-powered – all 68. China's only got about 12 nuke boats (6 attack, 6 ballistic missile). That gives the US some serious advantages: The US Navy's building new Columbia-class SSBNs and more Virginia-class SSNs. So that qualitative edge? It's not going anywhere for decades. No contest – the US leads. Virginia-class attack subs are the gold standard. They've got: China's best is the Type 095 (Sui-class) SSN. It's maybe comparable to early US Los Angeles-class boats – from the 1970s. Still lags in noise reduction and sensor integration. Their new SSBN, the Type 096, might carry JL-3 missiles with a 10,000 km range. But we don't know if it actually works reliably yet. "The numbers game is deceptive. China has more hulls, but the U.S. has more combat power. A single Virginia-class SSN can carry 40 Tomahawk missiles and operate globally. It would take half a dozen Chinese diesel boats to match that capability." - Dr. Andrew Erickson, Professor of Strategic Studies, U.S. Naval War College Things are shifting, though. China's building fast – maybe they'll overtake the US in total numbers within a decade. But for open-ocean fights? US subs with nuclear reactors and Mk48 torpedoes still win. In regional waters, near China? Different story – those diesel boats are a real threat. China's got about 60 subs. The US has 68. But China has more if you count diesel boats. US has more nuke-powered ones. The US. All 68 are nuclear. China only has about 12. Yeah, in regional waters – like a Taiwan conflict. Those diesel subs are dangerous there. But in open oceans, US tech and global reach make it less of a worry. About 2-3 Virginia-class subs annually. China builds 3-4, a mix of nuclear and diesel.Who has more submarines, China or the USA
Current Submarine Fleet Numbers: China vs. USA
Why does China have so many submarines?
Does the USA have more nuclear submarines?
Who has the most advanced submarines?
Detailed Comparison Table
Metric
China (PLAN)
USA (USN)
Total Submarines
~60
68
Nuclear Attack (SSN)
~6
53
Ballistic Missile (SSBN)
~6
14
Diesel-Electric (SSK)
~48
0
Nuclear Powered %
~20%
100%
Global Reach
Limited (mostly regional)
Worldwide
Technology Level
Advanced (Type 095/096)
Cutting-edge (Virginia/Columbia)
Expert Insights and Strategic Implications
Frequently Asked Questions (FAQ)
How many submarines does China have compared to the USA in 2024?
Which country has the most nuclear submarines?
Is China's submarine fleet a threat to the U.S. Navy?
How many submarines does the U.S. build per year?
Checklist: Key Factors in Submarine Comparison
Short Summary
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