The Fullmetal Alchemist watch order depends on how much time you have. Watching one series only: pick Brotherhood (64 episodes), the faithful manga adaptation. Watching both: start with the 2003 series and its film, then Brotherhood. Never alternate between them — they are separate stories, not two halves of one.
Fullmetal Alchemist is the rare franchise where “which one do I watch?” is a genuinely hard question rather than a trick. Two full-length anime adaptations exist. They share a cast, a premise and their opening hours, then split into completely different stories with different villains and different endings.
Most guides answer this in four words — “just watch Brotherhood” — and for a lot of viewers that is right. But the reason it is right has nothing to do with the 2003 series being bad, and if you pick on the wrong criteria you can spoil the better viewing experience for yourself permanently. Here is the actual decision.
The Fullmetal Alchemist watch order at a glance
| Entry | Year | Format | Length | Belongs to |
|---|---|---|---|---|
| Fullmetal Alchemist | 2003 | TV | 51 episodes | 2003 continuity |
| Conqueror of Shamballa | 2005 | Film | 1 film | 2003 continuity (ending) |
| Fullmetal Alchemist: Brotherhood | 2009 | TV | 64 episodes | Manga continuity |
| The Sacred Star of Milos | 2011 | Film | 1 film | Manga continuity (side story) |
Why there are two versions at all
This is a production-schedule accident, not a remake.
The 2003 anime premiered when Hiromu Arakawa’s manga was only about five volumes deep. The studio had a show to finish and no ending to adapt, so with Arakawa’s blessing it followed the manga up to the death of Maes Hughes and then walked off the map — inventing its own antagonists, its own explanation for the homunculi, and its own conclusion. That conclusion arrives not in the series but in the 2005 film Conqueror of Shamballa.
Brotherhood arrived in 2009, once the manga was almost finished, and adapted the real story across 64 episodes. It is not a continuation of the 2003 show and it does not acknowledge it.
Brotherhood vs the 2003 series: what actually differs
| 2003 series | Brotherhood | |
|---|---|---|
| Episodes | 51 (+ 1 film) | 64 (+ 1 optional film) |
| Source | Manga, then original | The complete manga |
| Tone | Bleaker, more intimate | Broader, more heroic |
| Homunculi | Original origins | Manga origins |
| Scope | Stays close to the brothers | Expands to a national conspiracy |
| Ending | In the film, not the series | Self-contained |
| Early pacing | Slower, more dwelling | Compressed first 10 episodes |
Where exactly the two split
The divergence has a precise location, and knowing it saves you a lot of confusion. Both adaptations track the same events until Maes Hughes is killed — episode 25 of the 2003 series, episode 10 of Brotherhood. That single comparison tells you everything about their pacing: the 2003 series spends 25 episodes reaching a beat Brotherhood reaches in 10.
After that point the two stop sharing a plot entirely. The 2003 series gives the homunculi origins that do not exist in the manga and builds toward a conclusion set outside Amestris altogether. Any Fullmetal Alchemist watch order you see that mixes the two is ignoring this split.
The most useful way to frame the difference: the 2003 series is a story about grief that happens to contain alchemy. Brotherhood is a story about a country that happens to be held together by two grieving brothers. Both are good. They are aiming at different things.
On the alchemy itself, both adaptations use the same equivalent-exchange rules, which remain one of the tightest magic systems in the medium — we cover where it sits against the rest in our guide to anime power systems explained.
The order that most guides get backwards
Here is the part that actually matters, and it is an argument about sequence rather than quality.
The standard recommendation is Brotherhood first, then the 2003 series if you are curious. In practice that order damages the 2003 series far more than the reverse damages Brotherhood, and the reason is structural.
Both shows open on the same roughly ten hours of story. Brotherhood sprints through that stretch on the assumption that you already know it — its first ten episodes are noticeably compressed, because in 2009 most of its audience did. The 2003 series takes its time there instead. The Nina Tucker episode, the Hughes material, the early Ishval references: that show treats them as the emotional core rather than as setup to clear.
So watching 2003 first gives you the slow version of material that Brotherhood is going to rush anyway — you arrive at Brotherhood‘s compressed opening already carrying the weight, and it plays as brisk rather than thin. Reverse it and the 2003 series becomes 51 episodes of slow-rolling twists you already know, which is the single most common reason people abandon it ten episodes in and conclude it is the worse show.
There is also an ending argument. Brotherhood closes warmly and conclusively. Conqueror of Shamballa closes on something much colder. Finishing on the warmer note is simply a better evening.
The caveat: this only applies if you are genuinely going to watch both, which is about 115 episodes and two films. If you are watching one series and one series only, watch Brotherhood. It is the complete story, it stands alone, and it does not require a film to finish itself.
Three routes, depending on your time
Route 1 — Watching one series (about 26 hours)
Brotherhood, episodes 1–64. Stop there. The Sacred Star of Milos is an optional side story set inside the same continuity; skipping it costs you nothing.
Route 2 — Watching both, best experience (about 48 hours)
- 2003 series, episodes 1–51
- Conqueror of Shamballa — this is that series’ real ending; the show is genuinely incomplete without it
- Brotherhood, episodes 1–64
- The Sacred Star of Milos, optional
Route 3 — You already watched Brotherhood
Go back to the 2003 series, but start at episode 26 rather than episode 1. That is roughly where it leaves the manga behind and stops being a slower retread of what you know. You will miss some setup, but you will actually finish it — and the back half is the part worth seeing.
What never to do
Do not try to merge them. There is a persistent suggestion online to watch the 2003 series up to a certain point and then switch to Brotherhood. It does not work. The two shows diverge on character motivation and on the nature of the homunculi well before their plots visibly separate, so a hybrid route leaves you with contradictory information about who several characters actually are.
Where to watch Fullmetal Alchemist
Crunchyroll carries both series and both films in most regions, subtitled and dubbed. The Brotherhood dub is one of the more widely praised English casts in anime and reuses much of the 2003 cast, so switching between the two does not mean relearning voices — see our take on sub versus dub if you are undecided.
Both series are shonen by publication, though the 2003 continuity in particular pushes at that boundary; our breakdown of shonen and seinen covers why that label describes an audience rather than a tone.
Frequently Asked Questions
Should I watch Fullmetal Alchemist or Brotherhood first?
If you are only watching one, watch Brotherhood — it adapts the complete manga and stands alone. If you plan to watch both, watch the 2003 series and Conqueror of Shamballa first, then Brotherhood, so the 2003 series’ slower early pacing works for you rather than against you.
Is Brotherhood a sequel to the 2003 series?
No. Brotherhood is a separate adaptation that restarts from the beginning. It does not continue, reference or acknowledge the 2003 series, and the two have different villains and different endings.
Do I need to watch Conqueror of Shamballa?
Only if you watch the 2003 series, in which case yes — it is that continuity’s actual ending and the series feels unfinished without it. If you are watching Brotherhood, skip it entirely; it belongs to the other continuity.
Is The Sacred Star of Milos canon?
It is set within Brotherhood’s continuity but is a standalone side story. Nothing in the series depends on it, so treat it as optional.
How many episodes is Fullmetal Alchemist in total?
115 television episodes across both adaptations — 51 for the 2003 series and 64 for Brotherhood — plus two films. Watching only Brotherhood is 64 episodes, roughly 26 hours.
The short version
One series: Brotherhood. Both series: 2003, then Conqueror of Shamballa, then Brotherhood. Already seen Brotherhood: jump into the 2003 series around episode 26. Whatever you do, do not try to stitch the two together.
Production details and episode counts in this guide were checked against the 2003 series’ production history and the Fullmetal Alchemist Wiki.
