Use DIYP’s Free Online Tools for Photographers And Filmmakers

These calculators cover common photographic calculations, from print preparation and focus control to long exposures and pinhole cameras. They’re intended as practical references you can use while planning a shoot, setting up a camera, or preparing images for output.

New tools are added both in response to our real shooting needs and your feedback. You can even put these calculators on your own websites if you want to. If there’s a calculator you’d find useful and don’t see here, let us know.

Print Size Calculator

Calculate the pixel dimensions required for a specific print size to avoid soft or low-resolution prints. This is useful when preparing images for labs, home printers, or competitions where a minimum resolution is required.

• Use the Print Size Calculator

Hyperfocal Distance Calculator

Find the focus distance that keeps the maximum possible area of a scene sharp, from foreground to infinity. This is commonly used in landscape and architectural photography when you want depth without guessing where to focus.

• Use the Hyperfocal Distance Calculator

Depth of Field Calculator

See how much of your photo will be in focus based on your lens, aperture, and subject distance. This makes it easy to figure out whether you’ll get background blur or sharpness throughout the scene before you take the photo.

• Use the Depth of Field Calculator

Long Exposure (ND) Calculator

Need to figure out how long to expose for when using an ND filter? Well, it’s easy, starting from a normal exposure. This calculator helps you get the timing right straight away instead of guessing and checking when shooting long exposures.

• Use the Long Exposure (ND) Calculator

Pinhole Exposure Calculator

Calculate the effective f-number and exposure time for a pinhole camera using your camera’s meter as a reference. It provides a practical starting point when working with pinhole setups where normal aperture scales don’t apply.

• Use the Pinhole Exposure Calculator

Put DIYP’s calculators on your own website

Want to use these calculators on your own website or in a custom web-based interface? Each one can be embedded with a simple copy-and-paste code snippet.

The embed code for each calculator is provided on its own page, along with options for setting defaults and appearance. All calculators run entirely in the browser and don’t require server-side integration.

---

Third-Party Tools

From time to time, we partner up with third parties offering free tools for filmmakers and photographers. Do you offer a free tool we might want to list here? Get in touch!

CinePower Calculator – Camera Rentals NYC

Camera Rentals NYC’s CinePower Calculator is a digital-cinema-gear battery-consumption calculator. It’s a valuable tool for those working on long shoots with multiple cameras drawing power on location. You’re able to add a range of cameras from companies like Nikon, Canon, Panasonic and Blackmagic, as well as monitors from Atomos & SmallHD, and a range of other equipment.

Once your equipment’s added, it’s time to add your batteries and chargers. You get a total estimated runtime, along with total power draw and total capacity. If you often find yourself lugging tons of batteries on your shoots, it’s well worth a look.

Excire Foto Light 2022

Excire Foto 2022 Light is a free desktop photo management tool designed to help users organise and quickly find images using AI-powered tagging, facial recognition, and content-based search. It offers simple, local-only processing with no reliance on cloud services, supporting common formats like JPG, PNG, and BMP.

Users can sort and manage photos using collections, ratings, flags, and colour labels, while also discovering similar images and identifying people within their library. Overall, it focuses on reducing time spent on manual photo organisation to improve workflow efficiency.

---