How Long Is 50ft of Super 8 on Screen? Estimating Your Cine Footage and Cost
A standard 3-inch Super 8 reel holds 50 feet of film — about 3,600 frames, or roughly 3 minutes 20 seconds on screen at 18 frames per second. That single fact is the key to estimating what digitising your whole collection will cost, because UK cine labs price work in three different units — per reel, per foot and per minute — and they only line up once you can convert your shelf of reels into feet and minutes. This guide shows you how to measure a reel in thirty seconds, turn its diameter into footage and screen time, and use that to get a genuine cost estimate before you post anything.
Key takeaways
- 50ft (a 3-inch reel) ≈ 3½ minutes. Super 8 = 3,600 frames ≈ 3 min 20 s; Standard 8 = 4,000 frames ≈ 3 min 40 s at 18 fps.
- Reel size is the fast way to estimate footage: 3-inch ≈ 50ft, 4-inch ≈ 100ft, 5-inch ≈ 200ft, 6-inch ≈ 300ft, 7-inch ≈ 400ft.
- Format changes the runtime. Standard 8 runs 80 frames per foot vs Super 8’s 72, so the same footage plays about 11% longer — and costs more at a per-minute lab.
- EachMoment prices (2026): from £7.50 for a 3-inch/50ft reel, £12.50 for a 5-inch/200ft reel and £16.50 for a 7-inch/400ft reel with the full volume discount (the base prices are £14.99, £24.99 and £32.99).
- Watch the billing unit. Per-reel is easiest to budget; per-foot and per-minute rates can punish long or dense reels. Convert everything to per-reel to compare labs fairly.
Most people inherit cine film the same way: a biscuit tin or a shoebox of small metal and plastic reels, no labels, no projector that works, and no idea whether that’s ten minutes of footage or two hours. Before you can decide whether to digitise everything or just the best reels, you need two numbers — how much screen time you actually have, and what it will cost to convert. They’re the same problem, because every pricing model traces back to the length of film on the reel.
At EachMoment we scan cine reels frame by frame. This is the ready-reckoner we wish every attic-clearing family had, for the question “how long is all this, and what will it cost me?”
The one number to memorise: 50ft ≈ 3½ minutes
A 3-inch diameter reel — the little ones that processed Super 8 film came back on — holds 50 feet of film. That’s the reference unit for the whole hobby. Here is what 50 feet becomes on screen:
- Super 8: 72 frames per foot × 50ft = 3,600 frames. At 18 fps that’s 200 seconds — 3 minutes 20 seconds.
- Standard 8 (Regular 8): 80 frames per foot × 50ft = 4,000 frames ≈ 3 minutes 40 seconds at 18 fps.
Why the difference? Standard 8 has a smaller frame and tighter frame pitch, so more frames fit in each foot. At the same projection speed, more frames means more running time. If your camera or projector ran at 24 fps (some sound rigs did), knock roughly a quarter off those times.
These frame counts aren’t our figures — they’re the film standards. Kodak introduced Super 8 in 1965 in a 50ft drop-in cartridge, and the frames-per-foot for 8mm and Super 8 are fixed by the film’s perforation pitch; Kodak’s own datasheets use the same constants. That’s what makes a footage estimate reliable: the maths is dictated by the format, not the lab.
That comparison shows why “how long on screen” and “what quality” are linked. A phone pointed at a projector screen keeps the flicker, the warm colour cast and the softness. A frame-by-frame scan reads each of those 3,600 frames individually, so you get stable footage — and an exact frame count, which is what an honest per-foot or per-minute estimate is built on.
Step 1 — Measure the reel to estimate footage
You don’t need to unspool anything. Reel diameter maps closely to footage, because film winds in predictable layers. Put a ruler across the reel (or read the size stamped on the side) and use this table:
| Reel diameter | Approx. footage | Super 8 runtime (18 fps) | Standard 8 runtime (18 fps) |
|---|---|---|---|
| 3 inch (7.5 cm) | 50 ft (15 m) | ≈ 3 min 20 s | ≈ 3 min 40 s |
| 4 inch | 100 ft (30 m) | ≈ 6½ min | ≈ 7½ min |
| 5 inch (12.5 cm) | 200 ft (60 m) | ≈ 13 min | ≈ 15 min |
| 6 inch | 300 ft (90 m) | ≈ 20 min | ≈ 22 min |
| 7 inch (17.5 cm) | 400 ft (120 m) | ≈ 27 min | ≈ 30 min |
Footage figures are the standard reel-capacity conventions (a 3-inch/50ft reel is the Super 8 cartridge default); runtimes are calculated from the fixed frames-per-foot for each format (Super 8 = 72, Standard 8 = 80) at 18 fps. Reels are often wound short of their rated capacity, so treat these as an upper bound.
To estimate a whole collection, sort your reels into these five buckets, count how many are in each, and multiply. Ten 3-inch reels and three 5-inch reels, all Super 8, is roughly (10 × 3.3) + (3 × 13) = about 72 minutes of footage.
Step 2 — Turn footage into a cost estimate
Here’s where UK labs make comparison hard: they don’t all price the same way. Some quote per reel, some per foot, some per minute and some a flat DVD bundle — four different units, none directly comparable. Convert every quote to a per-reel figure and the picture clears up.
| Billing unit | How it’s quoted | What a 5-inch/200ft reel really costs | Best for |
|---|---|---|---|
| Per reel | Flat price by reel size | One clear number | Budgeting a mixed collection |
| Per foot | e.g. 17p per foot | 200 × £0.17 ≈ £34 | Labs; punishes long reels |
| Per minute | e.g. 74p per minute over a threshold | ≈ 13 min × rate + base | Short reels; costly for dense film |
| DVD bundle | Flat “up to X minutes on a disc” | One price for one disc regardless of reels | Small collections onto DVD |
Our own per-reel pricing is deliberately banded by the reel sizes above, because that’s the number you can actually check with a ruler before ordering:
| Reel size | Footage | Screen time (Super 8, 18 fps) | EachMoment price (2026) |
|---|---|---|---|
| 3-inch | 50 ft | ≈ 3 min 20 s | From £7.50 (base price £14.99) |
| 5-inch | 200 ft | ≈ 13 min | From £12.50 (base price £24.99) |
| 7-inch | 400 ft | ≈ 27 min | From £16.50 (base price £32.99) |
| EachMoment's published UK prices per reel, checked on 12 November 2026. The lowest price is with the full volume discount, which applies when your Memory Box is back at our lab within 4 weeks of dispatch. Optional AI enhancement is from £4.99 per file. | |||
Worked example: that shelf of ten 3-inch and three 5-inch Super 8 reels — about 72 minutes, or 1,100 feet — comes to (10 × £14.99) + (3 × £24.99) = £224.87 at list on our per-reel pricing, before any volume discount (an order of this size earns the 15% step, which brings it to about £191). Billed instead at an example rate of 17p per foot, the same 1,100 feet works out at about £187 — close, but the per-foot figure climbs fast on long reels, and a per-minute lab’s overage charge (for example 74p a minute above a 33-minute threshold) punishes a single dense 7-inch reel far more than a stack of short ones. This is why converting every quote to per-reel is the only fair comparison. For a full breakdown of per-foot, per-reel and the sound-stripe question, see our companion guide on Super 8 digitisation costs.
Step 3 — Know what changes the price
Once you have footage and a per-reel band, three things move the final number:
- Format and gauge. Super 8, Standard 8 and 16mm all scan differently. 16mm runs 40 frames per foot, so a 400ft 16mm reel is about 15 minutes at 18 fps — but the larger frame and different transport mean a different rate. Mixed collections get quoted per format.
- Condition. Brittle, shrunken or vinegar-affected acetate needs careful handling. Acetate decay roughly doubles for every 5 °C rise in storage temperature, so a reel from a warm loft may need more work than one from a cool cupboard.
- Output and extras. A plain MP4 file is cheapest; a DVD set or AI enhancement each add cost. Sound reels are a separate question: write to us first to find out whether we can capture a magnetic sound stripe, and ask any lab whether it charges extra for it.
The slider above is one frame of your estimate made visible. A 60-year-old reel hasn’t just lost minutes to brittle leader — it’s lost density and colour.
How the reel becomes a digital file
Understanding the process explains the price. We don’t film a projected image — we scan each frame individually on a frame-by-frame film scanner, which is why the output has no flicker and an exact, countable frame total.
Because every frame is captured individually, a 50ft reel is genuinely 3,600 discrete scans. That’s the honest basis for any per-foot or per-minute quote — and why a cheap all-in-one home digitiser, which re-films the projected image, can’t match it for stability or resolution.
Estimating a mixed collection: a checklist
- Sort by reel diameter into the five buckets (3/4/5/6/7-inch).
- Identify the format — Super 8 has noticeably smaller perforations than Standard 8. Our cine film formats guide shows how to tell them apart.
- Multiply reel counts by the runtime figures above to get total minutes — or use our reel runtime calculator to do it for you.
- Multiply reel counts by a per-reel price band to get a cost estimate.
- Add extras only if you want them — enhancement or a DVD set.
That’s a defensible estimate you can take to any lab. When you’re ready to convert, our Super 8 to digital service and Standard 8mm service scan frame by frame, and you can get an exact quote before posting anything.
Ready to digitise your cine collection?
Order a Memory Box, post your reels to our lab, and we scan them frame by frame — exact quote up front.
Start your Super 8 order →Frequently asked questions
How long is 50ft of Super 8 film on screen?
A 50ft (3-inch) Super 8 reel holds about 3,600 frames and runs roughly 3 minutes 20 seconds at the standard silent speed of 18 frames per second. A 50ft Standard 8 reel holds 4,000 frames and runs about 3 minutes 40 seconds. At 24 fps, subtract roughly a quarter.
How much does it cost to convert cine film to digital in the UK?
EachMoment’s per-reel prices are from £7.50 (3-inch), £12.50 (5-inch) and £16.50 (7-inch) with the full volume discount; the base prices are £14.99, £24.99 and £32.99. The discount applies when your Memory Box is back at our lab within 4 weeks of dispatch.
How do I estimate the footage of my cine reels without a projector?
Measure the reel’s diameter. A 3-inch reel holds about 50ft, 4-inch about 100ft, 5-inch about 200ft, 6-inch about 300ft and 7-inch about 400ft. Multiply footage by the frames-per-foot for your format (72 for Super 8, 80 for Standard 8) to get frames, then divide by your projection speed (18 or 24 fps) for seconds of screen time.
Why do labs quote different prices for the same reel?
They use different billing units — per reel, per foot (e.g. 17p/ft), per minute (e.g. 74p/min over a threshold), or a flat DVD bundle. A per-foot or per-minute rate can cost far more on a long or dense reel than a flat per-reel price. Convert every quote to a per-reel figure using your footage estimate to compare labs fairly.
Does Standard 8 really run longer than Super 8 for the same footage?
Yes. Standard 8 packs 80 frames per foot against Super 8’s 72, so at the same 18 fps the same length of film plays about 11% longer on screen (80 ÷ 72 ≈ 1.11). On a per-minute pricing model, that difference is billed to you.
Is the soundtrack on a sound reel extra?
It depends on the lab, so ask before you send. If your reel has a magnetic sound stripe, write to us first to find out whether we can capture the sound. Only Super 8 reels made between 1973 and 1997 are likely to carry magnetic sound.
