• Free Tool – No Sign-Up Required
Free Timelapse
Interval Calculator
Enter your shoot duration, desired clip length, and frame rate — get your exact interval, shutter speed, total frame count, and estimated storage requirement instantly. Know exactly how many gigabytes your shoot will need before you leave the house. No math, no guesswork, no nasty surprises in the field.
4
24/25/30
180°
100%
The Fundamentals
What is a Timelapse Interval?
Understanding the interval is the single most important thing you can do before pressing record. Get it wrong and no amount of post-processing can save the footage.
A timelapse interval is the time gap in seconds between each consecutive photo in a timelapse sequence. It determines how fast or slow the final video appears to move. A short interval of 1–2 seconds captures fast-moving subjects like traffic and crowds. A long interval of 30–60 seconds is necessary for slow subjects like cloud formations, sunsets, or construction progress over weeks.
The interval between shots must always be longer than the shutter speed. If the shutter stays open longer than the interval, the camera cannot finish writing the previous image before the next shot is triggered. This can lead to missed frames or broken timelapse sequences.
This is where the 180-degree rule becomes important. It helps you choose a shutter speed that creates natural motion blur. In bright daylight, however, the required shutter speed can be difficult to achieve without overexposing the image.
ND filters solve this problem by reducing the amount of light entering the lens. This allows you to keep the correct shutter speed for smooth motion blur while maintaining your chosen interval.
Affiliate Disclosure
This page contains affiliate links. Purchases made through these links support Aero Timelapse Studio at no additional cost to you. I only recommend products I personally use or carefully research. As an Amazon Associate I earn from qualifying purchases.
Interval Too Short
Camera buffer overflows, frames are missed, sequences become corrupt. At short intervals in RAW, your camera’s write speed becomes the limiting factor — not your intervalometer.
Interval Too Long
Not enough frames for a usable clip length. A 2-hour shoot at a 60-second interval gives you only 120 frames — under 5 seconds at 25fps, too short for licensing on any major platform.
Get It Right First Time
Use the calculator above before every shoot. Enter your planned duration, target clip length, and frame rate. The tool calculates your interval, shutter speed, and exact frame count in one step.
Step-by-Step Guide
How to Use the Calculator
From zero to correct settings in under two minutes. Here’s exactly how to use every output value in the field.
Enter your total shoot duration
Type how long you plan to be shooting — in hours and minutes. This is real-world time from first frame to last. A golden hour shoot is typically 45–90 minutes. A full day-to-night Holy Grail sequence needs 3–6 hours. A construction progress sequence may span an entire day.
Set your target clip length
Enter how long you want the final video to be in seconds. For stock footage sold on Shutterstock and Pond5, the sweet spot is 15–20 seconds — long enough for a complete establishing shot or background loop, short enough for buyers to use in multiple project contexts. Clips under 8 seconds have significantly lower licensing value.
Choose your output frame rate
Select 24fps for cinematic timelapse (the most commercially versatile choice worldwide), 25fps for European and international broadcast distribution, or 30fps for US digital and global standard. Shutterstock, Pond5, and Adobe Stock all accept 23.97, 24, 25, 29.97, and 30fps. Avoid 60fps for timelapse — buyers rarely request it and it doubles your storage needs without benefit.
Read your calculated interval
The calculator outputs your exact interval in seconds. Enter this value into your camera's built-in intervalometer, or into a dedicated external trigger — I use the Pixel TW-283 Intervalometer for cameras that don't have a reliable built-in timer, as it handles sub-second intervals that most in-camera timers can't guarantee cleanly. If your camera only supports whole-second intervals, always round up — never down. Rounding down means your camera cannot physically keep up with the trigger. If you're shooting outdoors, you'll also need an ND filter to hit the correct shutter speed. Use the free ND Filter Calculator to find the exact filter strength for your scene.
Verify your total frame count and storage
The third output shows exactly how many photos you need to complete the sequence. Multiply this by your per-file size to confirm your memory card has sufficient space. A 4K RAW file from a 45-megapixel camera averages 50–80MB per frame — at 500 frames that's 25–40GB minimum. For RAW timelapse, write speed matters as much as capacity — a slow card causes buffer delays that corrupt sequences mid-shoot. The SanDisk Extreme Pro 128GB V60 handles continuous RAW bursts without bottlenecking even on high-megapixel bodies. Once you have your footage, use MetaShot Pro to generate platform-optimized metadata before uploading.
Frequently Asked Questions
What is a timelapse interval calculator?
A tool that calculates your ideal shooting interval (seconds between shots) and total frame count based on your desired clip length, fps, and recording duration.
How to use timelapse interval calculator?
Enter three values: total capture duration, final clip length, and frames per second (fps). Press Calculate – the result gives you interval and total photos needed.
What inputs does the timelapse interval calculator need?
It needs capture duration, clip length, and fps. Optionally, you can add advanced fields like exposure buffer or estimated card space for better planning.
Can I use this for drone hyperlapses?
Yes. Enter your flight time (capture duration), desired clip length, and fps. The calculator shows the interval that keeps your hyperlapse smooth and balanced during flight.
What’s the perfect timelapse interval?
There’s no fixed value – it depends on motion speed and duration. Use shorter intervals for fast scenes; longer ones for slow movement. The tool helps find your exact match.
Should I test my interval before recording the full timelapse?
Absolutely. Record a small preview to confirm motion pacing and exposure balance before running long sequences.
How do I calculate timelapse interval manually?
Use the formula:
Interval (s) = Capture Duration (s) ÷ (Clip Length (s) × FPS)
You can read our Timelapse Interval Guide for deep dive with examples.
Also From AeroTimelapse
Complete Your Workflow
The interval calculator handles your shoot settings. MetaShot Pro handles everything after — platform-optimized titles, descriptions, and keywords for Shutterstock, Pond5, and Adobe Stock.
Two minutes with the calculator before every shoot. Zero rejected clips for wrong frame counts or interval errors.
Need help capturing professional timelapse for your next project but not ready to invest in the gear yet? Check out our Timelapse Video Production service to see how Aero Timelapse Studio can help elevate your production.