Filler Guide
A Certain Scientific Railgun
20.5% filler
skip filler to save ~6 hours
Total Episodes73
Canon49
Filler15
Anime Canon8
Mixed1
Episode Distribution
119375573
Canon
Anime Canon
Mixed
Filler
▸▾All Episodes
Eps 1–7321% FILLER73 eps
All Episodes
Eps 1–731ElectromasterCanonOct 2, 2009
2When Working Under a Hot Sun, Rehydration is EssentialMixedOct 9, 2009
3Tokiwadai is TargetedFillerOct 16, 2009
4Urban LegendsCanonOct 23, 2009
5A Certain Pair of New TraineesCanonOct 30, 2009
6Everyone is Proactive When it Comes to ThisCanonNov 6, 2009
7Abilities and PowersCanonNov 13, 2009
8Level UpperCanonNov 20, 2009
9Majority ReportCanonNov 27, 2009
10Silent MajorityCanonDec 4, 2009
11Dr. KiyamaCanonDec 11, 2009
12AIM BurstCanonDec 18, 2009
13A Bikini Divides the Eyeline Between Top and Bottom, But a One-piece Shows Off the Figure, so They Only Flatter the SlenderFillerDec 25, 2009
14Special WorkshopFillerJan 8, 2010
15Skill OutAnime CanonJan 15, 2010
16Academy CityAnime CanonJan 22, 2010
17Tsuzuri's Summer VacationFillerJan 29, 2010
18Asunaro ParkFillerFeb 5, 2010
19Midsummer FestivalFillerFeb 12, 2010
20PoltergeistAnime CanonFeb 19, 2010
21VoicesAnime CanonFeb 26, 2010
22Level 6Anime CanonMar 5, 2010
23What Is It You See In Your Eyes Right Now?Anime CanonMar 12, 2010
24Dear My FriendsAnime CanonMar 19, 2010
25RailgunAnime CanonApr 12, 2013
26CriticalCanonApr 19, 2013
27Project Radio NoiseCanonApr 26, 2013
28SistersCanonMay 3, 2013
29Project Level 6 ShiftCanonMay 10, 2013
30I... Can See All Of YouCanonMay 17, 2013
31I... I Want To Be Of Help To You, SissyFillerMay 24, 2013
32ITEMCanonMay 31, 2013
33AIM StalkerCanonJun 7, 2013
34MeltdownerCanonJun 14, 2013
35The Vending MachineCanonJun 21, 2013
36Tree DiagramCanonJun 28, 2013
37AcceleratorCanonJul 5, 2013
38The PromiseCanonJul 12, 2013
39Kamijou ToumaCanonJul 19, 2013
40SisterhoodCanonJul 26, 2013
41Study GroupFillerAug 2, 2013
42MovingFillerAug 16, 2013
43Academic Reach AssemblyFillerAug 23, 2013
44FebriFillerAug 30, 2013
45DarknessFillerSep 6, 2013
46STUDYFillerSep 13, 2013
47Silent PartyFillerSep 20, 2013
48Eternal PartyFillerSep 27, 2013
49Super-powered (Level 5)CanonJan 10, 2020
50The Daihasei FestivalCanonJan 17, 2020
51Balloon HunterCanonJan 24, 2020
52TamperingCanonJan 31, 2020
53TrustCanonFeb 7, 2020
54The Battle BeginsCanonFeb 14, 2020
55Auribus oculi fideliores sunt.CanonFeb 25, 2020
56Railgun ✕ Mental OutCanonMar 6, 2020
57Kozaku MitoriCanonMar 27, 2020
58Clone DollyCanonApr 3, 2020
59Joining the BattleCanonApr 10, 2020
60ExteriorCanonApr 17, 2020
61SYSTEM (Those Who Arrive at Heaven's Will in an Only Human Body)CanonMay 1, 2020
62Dragon Strike (Jaw of the Dragon King)CanonMay 15, 2020
63PromiseCanonMay 22, 2020
64Dream RankerCanonJul 24, 2020
65PrecognitionCanonJul 31, 2020
66Bust UpperCanonAug 7, 2020
67Strange CoincidenceCanonAug 14, 2020
68Ha Det BraCanonAug 21, 2020
69DoppelgangerCanonAug 28, 2020
70ScavengerCanonSep 4, 2020
71PossessionCanonSep 11, 2020
72DiffusionCanonSep 18, 2020
73My Dear FriendsCanonSep 25, 2020
Common questions
How many filler episodes does A Certain Scientific Railgun have?
A Certain Scientific Railgun has 15 filler episodes out of 73, which is 20.5% of the series.
Which A Certain Scientific Railgun episodes can I skip?
You can skip episodes 3, 13-14, 17-19, 31, 41-48. Everything else either adapts the manga or is anime canon.
How much time do you save skipping A Certain Scientific Railgun filler?
Roughly 6 hours, based on 15 filler episodes at about 24 minutes each.
More in this series
Not sure what order to watch them in? See the A Certain Magical Index / Scientific Railgun watch order.