How Long Are K-Drama Episodes? 226 Measured

How long are K-drama episodes, really? Not the one-hour block many viewers expect. We measured 226 episodes across the 24 Netflix K-dramas in our own ratings table, reading the runtime Netflix publishes for each one, and the average lands at 68 minutes. Split that number by origin and the picture sharpens: Korean network dramas licensed to Netflix average 75.5 minutes an episode, while Netflix’s own K-drama originals run closer to, and often under, an hour.

This article is for: anyone deciding how much time a K-drama actually takes, or wondering why one show’s episodes feel twice as long as another’s.

The Full List: Episode Length for All 24 Shows

How long are K-drama episodes across all 24 titles in one place? The table below is that answer, sorted from the longest average episode down to the shortest. These are the same 24 shows in our Netflix K-dramas ratings table, just reordered by runtime instead of IMDb score. Origins below come straight from that table’s own Origin column, and the two unscripted competition shows in it, Physical: 100 and Culinary Class Wars, are flagged here with a dagger since the next section calls them out separately from the 22 scripted dramas among these 24.

*Sample is how many episodes the runtime data was read from (Netflix’s public pages show up to ten at a time, and three shows here have six-episode seasons, so six is the full season for those). Avg runtime is that sample’s average, read off Netflix’s US title pages on August 2, 2026. Est. total multiplies that average by the show’s full published episode count and is an estimate, not a second measurement — see Methodology. † Physical: 100 and Culinary Class Wars are unscripted competition shows, not dramas; the licensed-vs-original comparison below counts them among the Netflix originals but calls out their non-drama status separately.

Scan the Origin column and a pattern shows up fast: the top of this list is almost entirely tvN, JTBC, ENA, and SBS titles that aired on Korean television before Netflix licensed them, while the shortest entries cluster at the bottom as Netflix originals. The next section puts a number on that gap.

Licensed Dramas Run Roughly 18 Minutes Longer

How long are K-drama episodes once you separate Netflix’s two very different sources for them? Compare the 13 licensed network dramas in our sample against the 11 Netflix originals, and the gap is 17.6 minutes per episode.

*Nine of the eleven Netflix originals are scripted dramas; the other two, Physical: 100 and Culinary Class Wars, are unscripted competition shows, footnoted rather than dropped from this total. Limited to the nine scripted dramas only, the original average falls further, to roughly 56 minutes across 77 episodes — see Methodology for how that narrower figure was calculated.

Licensed episodes average 75.5 minutes; Netflix originals average 57.9, a gap of roughly 18 minutes per episode. The pattern holds at the individual-episode level too: across every episode we measured, zero of the 130 licensed episodes ran an hour or under, while 62% of the 96 Netflix-original episodes did.

We don’t know why the two groups differ. One common explanation is broadcast scheduling: Korean network dramas have traditionally filled 60-to-70-minute slots that include ad breaks, while Netflix’s originals follow the platform’s own global format habits. We haven’t verified either half of that against a primary source, so treat it as an unconfirmed guess, not a finding.

The Longest Episodes We Measured

Reply 1988 has the longest average episode of any show in our sample: 88 minutes, with individual episodes ranging from 76 to 97. Queen of Tears is close behind at 86, and Vincenzo and Crash Landing on You follow at 82 and 80. All four are tvN dramas, and all four sit well inside the licensed group’s range rather than at some rare extreme. Long episodes are closer to the norm than the exception for network-licensed K-dramas in this sample.

The Shortest Episodes We Measured

At the other end, The Glory and D.P. tie for the shortest average episode among the scripted K-dramas we measured, both at 50 minutes, with Sweet Home and Kingdom close behind at 51. For a point of comparison outside Korean television, the shortest average among the Western shows we measured for context was The Night Agent, at 49 minutes, practically the same length. None of the shortest K-drama episodes in our sample come from a licensed network drama. Every one is a Netflix original.

Sixteen Episodes Isn’t a Rule

Sixteen episodes is common enough in Korean television that it’s easy to assume every K-drama, or at least every one worth watching, lands on that number. Our sample says otherwise. Episode counts here range from 6 (Kingdom, D.P., and Hellbound, each a single six-episode season) up to 30 (Alchemy of Souls, split into two uneven parts). Reply 1988, the longest average episode in this piece, runs 20. Count the distinct totals across all 24 shows and you’ll find 12, 16, 17, 18, 20, 22, 24, 25, 26, and 30, all represented. Sixteen shows up more than any other single number in our sample, but it’s a frequent choice, not a format rule.

What a Full Season Actually Costs You

The minutes-per-episode gap compounds fast once episode count enters the picture. A typical 16-episode licensed drama at this sample’s 75.5-minute average runs to roughly 20 hours total. A typical Netflix original K-drama, which in our sample tends to run 8 to 10 episodes at an average closer to 58 minutes each (close to When Life Gives You Tangerines‘s own 58-minute average), comes to somewhere around 8 to 10 hours. That’s roughly double the time for two shows that both get marketed the same way, as “a season” of a K-drama.

These are illustrative calculations built from this sample’s averages, not measurements of any single show’s full runtime past the tenth episode; see Methodology for why that limit exists.

Methodology

We read the runtime Netflix’s US title pages publish for each episode, on August 2, 2026. We did not time playback ourselves, so every figure in this piece is Netflix’s own listed length, not a stopwatch measurement of the finished video, and we don’t know whether those listed lengths include opening or closing credits.

Netflix’s public pages show up to ten episodes at a time, so for any season longer than ten episodes, our sample and average come from the first ten only. Three shows here (Kingdom, D.P., Hellbound) measure from six episodes instead, because six is the full length of the season Netflix lists for each. The “Est. total” column and the season-cost estimates elsewhere in this piece multiply a measured average by a show’s full published episode count; they are estimates built on a real measurement, not a second measurement of the episodes past the tenth.

We classified each show as a Netflix original or a licensed Korean network drama using the Origin column in our own Netflix K-dramas ratings table (tvN, JTBC, ENA, and SBS titles are broadcast dramas Netflix licensed after they aired; unmarked originals are Netflix’s own commissions).

The 57.9-minute original average used in the body of this piece covers all eleven Netflix originals in our full sample, including two unscripted competition shows, Physical: 100 and Culinary Class Wars. Remove those two and the remaining nine scripted dramas average 56.1 minutes across 77 episodes; both are real averages of the same underlying data, just two different slices of it, and we show both rather than picking one. Every number in this piece is recomputed from the per-episode JSON we keep in the repository, so it can be checked and rerun.

Sources

• Netflix — Korean TV catalog. The 24 shows in this piece all stream here; runtimes were read from each show’s own title page.
• Netflix — Reply 1988 title page. The longest average episode in our sample, read August 2, 2026.
• Netflix — The Night Agent title page. Our Western comparison point for the shortest average episode measured.

More guides on StreamDecoded:

• Where to Watch Every Show We Cover (Checked August 2026)
• Alchemy of Souls Episodes: 30, Split Into Two Parts
• Kingdom Watch Order: Two Seasons, One Sidequel