United Kingdom Military Spending

United Kingdom spends an estimated 2.5% of GDP on its military in 2026; its most recent reported expenditure in US dollars is $88.0 billion (2025).

Defense budget and military expenditure data (1950–2027)

Data updated: July 7, 2026

Key Facts (2026 estimate)

Military Expenditure

$92.4 billion

Ranked #6 of 153 countries worldwide

Percent of GDP

2.5%

Ranked #55 of 163 countries by % of GDP

Year-over-Year Change

+5.0%

From $88.0B in 2025

Historical Peak Spending

$89.8 billion

Reached in 2024

How the 2026 figures are produced. The share-of-GDP figure is a per-country estimate researched from announced and enacted national defence budgets. The dollar figure is not a per-country forecast — it is the actual SIPRI figure for 2025 raised by a flat 5%, the same rate applied to every country in this group, so it can rise even where the share-of-GDP path falls. Actual SIPRI figures for United Kingdom run to 2025.

United Kingdom Defense Budget Summary

In 2026, United Kingdom is estimated to have spent $92.4 billion on military and defense, representing 2.5% of the country's Gross Domestic Product (GDP). This budget covers the armed forces including army, navy, and air force expenditures. United Kingdom is the #6 highest military spender in the world by absolute spending.

Compared to the previous year (2025), defense spending increased by 5.0%, from $88.0 billion to $92.4 billion. This change in the military budget reflects growing defense priorities.

The highest percentage of GDP allocated to defense spending was 11.0% in 1953. The historical average military budget is 4.5% of GDP.

Data source: SIPRI Military Expenditure Database. Values are in constant 2024 US dollars. Data for 2026 is an estimate based on government budget announcements.

Historical Military Spending

Military Spending (% of GDP)

Military Spending (USD Billions, 2024 prices)

Historical Data

YearPercent of GDPUSD (millions)
2027(estimate)2.60%$96,783M
2026(estimate)2.50%$92,384M
20252.35%$87,985M
20242.44%$89,815M
20232.15%$78,167M
20222.01%$73,189M
20212.04%$72,051M
20202.14%$70,959M
20191.97%$69,849M
20181.93%$67,064M
20171.94%$66,563M
20161.97%$66,441M
20152.04%$66,674M
20142.17%$69,339M
20132.28%$70,601M
20122.41%$73,280M
20112.49%$75,373M
20102.56%$78,011M
20092.63%$79,344M
20082.48%$78,093M
20072.37%$74,818M
20062.36%$72,835M
20052.42%$72,502M
20042.48%$71,831M
20032.54%$70,950M
20022.47%$66,234M
20012.39%$62,518M
20002.35%$60,136M
19992.41%$58,949M
19982.48%$59,265M
19972.54%$59,072M
19962.71%$61,247M
19952.84%$61,838M
19943.38%$65,930M
19933.59%$67,795M
19923.86%$71,040M
19914.12%$76,058M
19903.98%$75,189M
19894.04%$75,082M
19884.21%$74,427M
19874.69%$77,160M
19865.06%$78,011M
19855.32%$78,986M
19845.51%$78,251M
19835.40%$74,554M
19825.38%$71,379M
19814.98%$65,471M
19805.02%$66,838M
19794.68%$62,680M
19784.73%$60,780M
19774.92%$58,908M
19765.18%$61,596M
19755.34%$62,512M
19745.07%$59,501M
19734.91%$59,485M
19725.17%$59,288M
19715.08%$55,738M
19705.20%$55,863M
19695.50%$54,234M
19685.94%$57,390M
19676.24%$58,219M
19666.25%$56,769M
19656.44%$57,073M
19646.60%$56,903M
19636.80%$55,402M
19626.94%$54,472M
19616.92%$53,781M
19607.09%$53,834M
19597.29%$52,743M
19587.62%$53,011M
19577.99%$54,438M
19568.56%$56,375M
19559.09%$57,438M
195410.06%$60,324M
195310.96%$63,541M
195210.37%$57,192M
19518.30%$44,709M
19507.21%$37,972M

Frequently Asked Questions

How much does United Kingdom spend on military?
In 2026, United Kingdom is estimated to have spent $92.4 billion on military and defense, representing 2.5% of the country's Gross Domestic Product (GDP). This budget covers the armed forces including army, navy, and air force expenditures.
What is United Kingdom's defense budget in 2026?
United Kingdom's 2026 defense budget is an estimated $92.4 billion in constant 2024 US dollars (estimate: the last reported figure carried forward at a flat rate, not an announced budget).
What percentage of GDP does United Kingdom spend on defense?
In 2026, United Kingdom spends an estimated 2.5% of GDP on its military. The historical average military budget is 4.5% of GDP.
Where does United Kingdom rank in military spending worldwide?
In 2026, United Kingdom ranks #6 of 153 countries by absolute military spending and #55 of 163 by share of GDP, based on 2026 spending estimates.
Is United Kingdom's military spending increasing or decreasing?
United Kingdom's military spending increased 5.0% year over year, from $88.0 billion in 2025 to $92.4 billion in 2026.

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