NATO Total Military Spending 2025: $1,520.9bn
NATO's 32 member states spent a combined $1,520.9bn on defense 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 covers all 32 of NATO's 32 current members — no countries are missing from the calculation.
- This is defensebudget.org's own sum of SIPRI country-level data; SIPRI does not publish an official NATO-wide total.
- 2025 is an actual reported figure, not an estimate.
Verdict
NATO's 32 members spent a combined $1,520.9bn on defense in 2025, equal to 55.5% of world military spending. This total is our calculation from SIPRI country-level data — SIPRI does not publish an official NATO-wide figure — and it sums all 32 current NATO members for 2025.
At a glance
| NATO total military spending, 2025 | $1,520.9bnConstant 2024 US$ |
|---|---|
| Share of world military spending | 55.5%SIPRI constant 2024 US$ terms |
| Members included | 32 of 32Full coverage, no gaps |
| Data year | 2025Actual, not an estimate |
| Source | SIPRI country dataAggregated by defensebudget.org |
NATO's 32 member states spent a combined $1,520.9bn on defense in 2025 — a defensebudget.org calculation from SIPRI country-level data, not a figure SIPRI itself publishes. That total is equal to 55.5% of world military spending for the year.
01 How much does NATO spend on defense in total?
Adding up 2025 SIPRI military-expenditure figures for every current NATO member produces a combined total of $1,520.9bn, expressed in SIPRI's constant 2024 US dollars. This is an actual, reported-year figure for 2025, not a projection.
| Metric | Value |
|---|---|
| NATO total military spending, 2025 | $1,520.9bn |
| Share of world military spending | 55.5% |
| Current NATO members | 32 |
| Members included in this total | 32 of 32 |
Because this is a sum of individually reported country figures rather than a SIPRI-published bloc total, it should be cited as an independent calculation drawn from SIPRI's underlying dataset.
02 NATO's share of world military spending
NATO's $1,520.9bn in 2025 spending equals 55.5% of world military spending that year. In other words, just under one in every two dollars spent globally on defense in 2025 came from a NATO member state.
That share reflects the alliance's combined economic and military weight across all 32 members, from its largest defense spenders to its smallest, rather than the position of any single country.
03 How the total is calculated: coverage and methodology
The $1,520.9bn figure is the sum of all 32 current NATO members' 2025 SIPRI military expenditure data. Every member is included — there are no gaps in coverage for this year, and no countries were excluded or estimated in place of missing data.
Sum of all 32 current NATO members for 2025.
Our calculation from SIPRI country-level data. Not SIPRI's own published total.
SIPRI reports military expenditure at the country level and does not itself publish an official NATO-wide total, so any bloc-level figure — including this one — is necessarily an aggregation performed after the fact. Readers citing this number should attribute it to defensebudget.org's calculation from SIPRI data, not to SIPRI directly.
04 How NATO's total could shift in estimate years
The 2025 figure of $1,520.9bn is drawn from actual reported data, not an estimate. SIPRI datasets for years beyond the current reporting cycle — typically 2026 and 2027 in this dataset — are partly estimated, and any NATO total calculated for those years should be labeled as an estimate rather than treated as final. Year-on-year changes in the NATO total will reflect a mix of national budget decisions, exchange-rate and inflation adjustments built into SIPRI's constant-dollar series, and any changes in alliance membership.
For a country-by-country breakdown of the spending that makes up this total, see NATO defense spending.
Frequently Asked Questions
- How much does NATO spend on defense in total?
- NATO's 32 member states spent a combined $1,520.9bn on defense in 2025, based on our calculation from SIPRI country-level data.
- What share of world military spending does NATO account for?
- NATO accounted for 55.5% of world military spending in 2025.
- Does SIPRI publish this NATO total directly?
- No. SIPRI publishes country-level military expenditure data; the $1,520.9bn NATO total is defensebudget.org's own sum of all 32 current members' 2025 figures, not a SIPRI-published bloc total.
- Are all NATO members included in this total?
- Yes. The calculation includes all 32 of NATO's 32 current members for 2025, with no countries missing or estimated.
- How much did NATO spend on defense in 2025?
- NATO's 32 member states spent a combined $1,520.9bn on defense in 2025, based on our calculation from SIPRI country-level data.
- What is the NATO military spending total?
- NATO's 32 member states spent a combined $1,520.9bn on defense in 2025, equal to 55.5% of world military spending. This is our calculation from SIPRI country-level data — not a SIPRI-published total — and reflects the sum of all 32 current NATO members for 2025.
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.