NATO Military Spending 2025: $1,520.9bn Total
NATO's 32 members spent a combined $1,520.9bn in 2025, equal to 55.5% of world military spending.
Key takeaways
- NATO's 32 members spent a combined $1,520.9bn on defense in 2025
- That total equals 55.5% of world military spending in 2025
- The figure includes all 32 of NATO's current members — none are missing
- It is our calculation from SIPRI's country-level data, not a total SIPRI itself publishes
- Figures are in constant 2024 US dollars
Verdict
NATO's 32 members spent a combined $1,520.9bn on defense in 2025, or 55.5% of world military spending. This is our calculation from SIPRI's country-level data covering all 32 current NATO members, not a figure SIPRI itself publishes.
At a glance
| NATO total spending, 2025 | $1,520.9bnAll 32 current members, summed |
|---|---|
| Share of world military spending | 55.5%2025 |
| Members included | 32 of 32None missing |
| Currency basis | Constant 2024 US$Inflation-adjusted |
| Data year status | ActualNot estimated |
NATO's 32 members spent a combined $1,520.9bn on defense in 2025, equal to 55.5% of world military spending. That figure is our calculation from SIPRI's country-level data for all 32 current members — SIPRI itself does not publish a single NATO total.
01 How Much Did NATO Spend on Defense in 2025?
Adding up 2025 military expenditure across all 32 current NATO members gives a combined total of $1,520.9bn, in constant 2024 US dollars. This is not an official NATO or SIPRI aggregate — it is our sum of the individual country figures SIPRI publishes for each member state's 2025 defense budget.
02 NATO's Share of Global Military Spending
NATO's $1,520.9bn in 2025 spending equals 55.5% of world military spending that year, based on our calculation from SIPRI's country-level data.
| Metric | Value |
|---|---|
| NATO (32 members), 2025 spending | $1,520.9bn |
| Share of world military spending | 55.5% |
03 Which Countries Are Included in This Total
The $1,520.9bn figure includes all 32 countries that currently belong to NATO, with 2025 data available for every one of them.
- Coverage — 32 of 32 current NATO members are included; none are missing from the 2025 total.
- Currency basis — All figures are expressed in constant 2024 US dollars, so year-to-year and country-to-country comparisons are not distorted by inflation or exchange-rate swings.
- Year status — 2025 is an actual reported year in the dataset, not an estimate.
04 How This Total Is Calculated
SIPRI publishes military expenditure figures for individual countries, not for alliances. To arrive at a NATO-wide number, we take SIPRI's 2025 constant-dollar figure for each of the 32 current member states and sum them.
Sum of all 32 current NATO members for 2025.
Our calculation from SIPRI country-level data. Not SIPRI's own published total.
05 NATO Spending in Context
NATO accounts for 55.5% of world military spending in 2025 — a measure of scale, not of strength or legitimacy. For a country-by-country breakdown of how the $1,520.9bn is distributed across the alliance's 32 members, see the NATO defense spending page.
Frequently Asked Questions
- How much did NATO spend on defense in 2025?
- NATO's 32 members spent a combined $1,520.9bn on defense in 2025, in constant 2024 US dollars.
- What share of world military spending does NATO account for?
- NATO accounted for 55.5% of world military spending in 2025, according to our calculation from SIPRI's country-level data.
- Does the NATO total include every member country?
- Yes. The $1,520.9bn figure sums 2025 spending for all 32 of NATO's current members; none are missing.
- Is the NATO total an official SIPRI or NATO figure?
- No. It is our calculation from SIPRI's country-level data for all 32 current members, not a total SIPRI itself publishes.
defensebudget.org
Defense spending data, sourced from SIPRI
defensebudget.org tracks military expenditure for 160 countries using the SIPRI Military Expenditure Database. Pages are generated from that dataset and reviewed before publication.