Estimating film volume has been a challenge in many projects and for quotations (as often there is no manufactured duration as for tapes) and films are usually stitched and spliced. Moverover, many of the archival films we process are not on full reels, but just on cores or as in News Reels often also without even cores. Especially archival film is often with little or unreliable information about film length or duration. Our FILM ESTIMATOR helps in the estimation process.
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| FILM FORMAT | |||||||||||||||||||
| Film Type | 8mm | Calc by Length | Calc by Duration | ||||||||||||||||
| Length in FT | 180 | Min | 10 | ||||||||||||||||
| Frame Rate (fps) | 24 | Frames per FT | 80 | Sec | 0 | ||||||||||||||
| Total Frames | 14400 | Total Second | 600 | ||||||||||||||||
| CALCULATION BY LENGTH | CALCULATION BY DURATION | Duration in Sec | 600 | Total Frames | 14400 | ||||||||||||||
| Min | 10 | 10 | Frames per FT | 80 | |||||||||||||||
| Length (ft) | 180 | Duration (Min:Sec) | 10:00 | Sec | 0 | Total Length FT | 180 | ||||||||||||
| Length | 180 | ||||||||||||||||||
| Total Frames | 14400 | Total Frames | 14400 | ||||||||||||||||
| Duration (Min:Sec) | 10:00 | Length (ft) | 180 | Frames per Ft | |||||||||||||||
| 8mm | 80 | ||||||||||||||||||
| Super 8mm | 72 | ||||||||||||||||||
| 9.5mm | 49.4 | ||||||||||||||||||
| 16mm | 40 | ||||||||||||||||||
| 35mm | 16 | ||||||||||||||||||
| Measure/Units: | Imperial (inch, ft) | |||||
| OutsideDia | 8 | |||||
| Diameter of Film Roll: | 8 | inch | CoreDia | 3 | ||
| Diameter of Core/Reel Hub (on center hole on wound film): | 3 | inch | UNIT | inch | ||
| Film Format: | 8mm | 0.0051 | ||||
| Thickness | 0.0051 | |||||
| cm | in | |||||
| 8mm | 0.0130 | 0.0051 | ||||
| Estimated Film Length: | 703.3341 | ft | Super 8mm | 0.014 | 0.0055 | |
| 16mm (Acetate) | 0.0133 | 0.00525 | ||||
| Note: Based on Memnon dataset average. Film thickness varies by film stock manufacturers and shrinkage affects winding. | 35mm (Acetate) | 0.0142 | 0.0056 | |||
| Pi x ((Ouside Radius^2) – (Core Radius^2)) / Caliper / 48 = Linear ft | ||||||
| Result | 703.3341 | ft | ||||
| ESTAR base is the same thickness for 16mm, 35mm, and 70mm Kodak VISION Color Print Films: 0.0047 in | 214.3762 | Meters | ||||
| http://super8wiki.com/index.php/Thickness_of_films | ||||||
| I recall that 35mm acetate prints used 0.0056 inch thick triacetate support, and 16mm prints used 0.00525 inch thick triacetate support. I'm trying to verify this recollection |
Please note, these are estimation. Actual data may vary by film condition, exact film type and film manufacturers.
Film Reel Sizes
The size of the reel is an indicator of the maximum film length capacity a reel can hold.
However, archival films are often not in reels (just on cores or often just tightly wound) or not taking up a full reels.
Try our FILM LENGTH ESTIMATOR to estimate based on the film diameter.
Reel Size Diameter
Film Length Capacity
Popular Film Gauges
- 3 in
- 4 in
- 7 in
- 9.75 in
- 10.5 in
- 12.5 in
- 16 in
- 50 ft reel
- 100 ft reel
- 400 ft reel
- 830 ft reel
- 800 ft reel
- 1200 ft reel
- 2000 ft reel
- 8mm, Super 8 mm, 16mm, 35mm
- 8mm, Super 8 mm, 16mm, 35mm
- 8mm, Super 8 mm, 16mm, 35mm
- 8mm, Super 8 mm
- 16mm, 35mm
- 16mm, 35mm
- 16mm, 35mm
