Timelapse Calculator

Timelapse photography planning covers four flexible calculation modes: the exact number of photos to capture, how long to shoot, what interval to use between shots, or the final clip length, depending on which value remains unknown. Each mode also returns an estimated storage requirement so memory cards and disks can be sized before the session begins.

• A calculation mode, clip length, shooting duration, interval, or number of photos, sets which value gets solved for from the other three.
• Numeric fields accept fractions such as 1/2, mixed numbers such as 2 1/4, decimals, and scientific notation.
• Video frame rate matches the intended output format: 24 fps for cinema, 25 fps for PAL broadcast, 30 fps for NTSC, and 60 fps for high frame rate output.
• Suggested interval presets populate the interval field with common values for clouds, sunsets, stars, construction, and other typical subjects.
• An average photo file size, set in advance, drives the storage estimate, alongside a step-by-step formula display for educational reference.

The underlying formulas are straightforward. Number of Photos equals Shooting Duration divided by Interval. Final Clip Length equals Number of Photos divided by Frame Rate. Reverse rearrangements solve for the unknown variable in any other mode, and storage is estimated as Number of Photos multiplied by the configured average file size.

Timelapse calculations apply across many shooting scenarios and skill levels. Photographers, videographers, educators, and students all rely on accurate timing to produce smooth, professional video output from a sequence of still frames.

• Landscape Photography: Calculate the shooting duration needed to capture a two-hour sunset compressed into a 10-second clip at 30 fps. A two-hour session at a 24-second interval produces exactly 300 photos, and 300 photos at 30 fps produces the 10-second clip.
• Astrophotography: Plan a star trail or Milky Way sequence with a 30-second interval over a 4-hour session. That works out to 480 frames and a 16-second clip at 30 fps.
• Construction Documentation: Set up a fixed camera to document a building project over weeks or months. A 5-minute interval estimates storage requirements and total photo counts for long-duration shoots.
• Event Coverage: Capture a busy market, festival, or sporting event with a 3-second interval. Determine how many hours of shooting will produce a 30-second highlight clip at 24 fps cinema frame rate.
• Nature and Wildlife: Film a flower blooming or ice melting using long intervals of 60 seconds or more. Estimate total memory card storage based on the average file size of RAW or JPEG output.
• Real Estate and Architecture: Create a day-to-night transition timelapse of a property exterior. Plan the exact start time and duration needed for a polished 15-second video at 25 fps.
• Education and Training: The step-by-step formula display teaches photography students the mathematical relationships between interval, frame count, shooting time, and video duration.
• Social Media Content: Plan short timelapse clips optimized for Instagram or TikTok. A desired clip length of 15 seconds resolves to the shooting parameters needed for the chosen subject.