photography Calculators
Depth of Field Calculator
Calculates how much of your scene stays in sharp focus given your lens and shooting settings. Use it when choosing aperture, focal length, or subject distance for portraits, landscapes, or macro shots.
Hyperfocal Distance Calculator
Finds the closest focus distance at which your lens keeps everything from half that distance to infinity acceptably sharp. Essential for landscape and street photographers who want maximum front-to-back sharpness.
Exposure Value Calculator
Computes the Exposure Value (EV) from your aperture and shutter speed, giving a single number that represents the total light entering the camera. Use it to compare exposure settings or match lighting conditions across different scenes.
Flash Guide Number Calculator
Calculates the correct aperture to use given a flash guide number and subject distance, or vice versa. Indispensable for manual flash photography when you need precise exposure control without test shots.
Field of View Calculator
Calculates the horizontal angle of view for any lens and sensor combination, showing how wide or narrow a scene your camera captures. Use it when choosing a lens focal length for a specific shot or comparing cameras with different sensor sizes.
Print Resolution Calculator
Determine the maximum physical print size your digital image can produce at a given resolution. Use this before ordering large-format prints to avoid pixelation.
Reciprocity Failure Calculator
Calculate the corrected exposure time needed for long film exposures where reciprocity law breaks down. Essential for film photographers shooting at exposures longer than about 1 second.
Magnification Ratio Calculator
Find the magnification ratio of your lens at a given focusing distance for macro photography. Use it to predict how large a subject will appear on the sensor relative to its real-world size.
Golden Hour Calculator
Find the exact start time of the golden hour based on your local sunset time. Perfect for landscape and portrait photographers planning shoots around the best natural light.
Crop Factor Calculator
Calculate the equivalent focal length of a lens on a crop-sensor camera compared to full-frame. Use this when comparing lenses across different camera systems or predicting field of view.
Exposure Calculator
Find the equivalent shutter speed when you change aperture, keeping overall exposure constant. Essential when switching f-stops mid-shoot without altering brightness.
Golden Hour Calculator
Find golden hour, blue hour, sunrise, and sunset times for any location and date by entering your coordinates and time zone. Ideal for planning outdoor and landscape photography sessions.
Macro Magnification Calculator
Compute the image magnification ratio and effective coverage area for macro photography, factoring in focal length, extension tubes, subject distance, and sensor size. Use it to predict how large your subject will appear on the sensor before you shoot.
Field of View Calculator
Calculate the horizontal coverage width (and height) at a given subject distance for any lens, sensor, and crop factor combination. Perfect for planning surveillance setups, portrait framing, or landscape compositions.
Timelapse Interval Calculator
Determine the ideal interval between shots, total frame count, video clip length, and storage space needed for any timelapse project. Use it before setting up your camera to guarantee smooth footage without running out of card space.
ND Filter Exposure Calculator
Calculate the correct long-exposure shutter speed when using one or more stacked ND filters. Essential for landscape and waterfall photographers who need to adjust for light reduction and film reciprocity failure.
Exposure Equivalents Calculator
Find equivalent camera settings that produce the same exposure value when you change aperture, shutter speed, or ISO. Useful any time you want to swap depth-of-field or motion blur without altering overall image brightness.
Print Size & Resolution Calculator
Determine the maximum print dimensions and check whether your image has enough pixels for sharp output at a target DPI. Photographers use this before ordering large-format prints or preparing files for press.
Photography Session Pricing Calculator
Calculate a fair, profitable price for a photography session by factoring in shooting time, editing hours, expenses, and your desired profit margin. Ideal for freelance photographers setting rates for clients.
Camera Storage & File Size Calculator
Estimate what percentage of a memory card a session will fill based on your camera's megapixels, file format, and number of photos. Use it to plan card capacity before a shoot.
Golden Hour & Blue Hour Calculator
Find the exact golden hour and blue hour times for any location and date. Photographers use this to plan outdoor shoots when warm, directional light is at its best.
Lens Focal Length Comparison Calculator
Compare how two lens-and-sensor combinations deliver equivalent fields of view. Use it when switching camera systems or renting a lens to match your existing look.
Exposure Calculator
Find the new shutter speed needed to maintain correct exposure after changing aperture. Ideal for photographers adjusting depth of field without altering brightness.
Timelapse Calculator
Calculate the shooting interval between frames for a timelapse sequence. Use it before a shoot to set your intervalometer correctly and hit a target video length.
Panorama Calculator
Calculate how many shots you need to cover a panorama, given your lens, sensor, and desired overlap. Use it when planning stitched panoramas to avoid gaps between frames.
Studio Lighting Calculator
Determines the fill light power needed to achieve a desired lighting ratio in a multi-light studio setup. Use it when balancing key and fill lights for portrait or product photography.
Golden Hour Calculator
Estimates solar noon and golden hour timing based on your latitude, longitude, day of year, and timezone. Ideal for photographers scouting shoot times for sunrise or sunset light.
Long Exposure Time Calculator
Calculates the correct long-exposure shutter speed when stacking ND filters, accounting for reciprocity failure. Use it when shooting waterfalls, light trails, or seascapes with neutral density filters.
Print Size Resolution Calculator
Calculates the uncompressed file size in megabytes required to print an image at a given size, DPI, and color depth. Use it to verify your camera file has enough resolution before sending a print to a lab.
Lens Focal Length Crop Factor Calculator
Converts a lens's actual focal length to its equivalent focal length on a different sensor size using the crop factor. Use it when switching between full-frame and APS-C or Micro Four Thirds camera systems.
Studio Lighting Ratio Calculator
Determine the exact fill light power needed to achieve a target lighting ratio in studio photography. Use this when balancing key and fill lights for portraits or product shots.