United States vs China Nominal GDP 2026

The United States maintains the world's largest nominal GDP at approximately $27.4 trillion in 2026, compared to China's $17.9 trillion, a difference of $9.5 trillion driven by higher per-capita income and service sector dominance. However, China has been closing the gap at roughly 2-3% annually and leads in PPP-adjusted GDP, making the comparison dependent on measurement methodology.