What the rule of thirds is
The rule of thirds is a composition guideline. You imagine the frame divided into nine equal parts by two vertical and two horizontal lines, like a tic-tac-toe grid. The idea is to place important elements along those lines, or at the four points where they cross, instead of in the exact center.
Many photographers find that off-center placement feels more natural and dynamic, because it leaves room for the rest of the scene to support the subject. It is a starting point, not a law. It is one of several tools covered in our overview of framing and composition.
Turn on the grid
Most cameras and phones can overlay a 3x3 grid on the screen or viewfinder. In the camera settings, look for an option called grid, gridlines or composition guide. Editing software also offers a thirds overlay when you use the crop tool, so you can check your composition afterward.
Where to place things
Subjects
Put the main subject near one of the vertical lines or an intersection. With a single subject, a position on one of the left or right lines often gives a balanced look, with the empty space on the other side.
Horizons
In landscapes, placing the horizon on the upper or lower line gives one part of the scene more emphasis. A horizon on the lower line highlights an interesting sky; on the upper line it highlights the land or water. Keep the horizon level.
Eyes in portraits
For portraits, many photographers place the eyes near the upper horizontal line. This is a common habit rather than a requirement, and it keeps the face from sitting too low in the frame.
Leave room to look and move
When a person looks to one side or a subject moves in a direction, leaving space in front of them usually feels more comfortable than placing them close to that edge. A subject facing out of the frame can feel cramped.
Practicing at home
You do not need to travel to practice. Try these simple exercises indoors or in the garden:
- One object, nine placements. Place a mug, plant or toy on a table and photograph it on each intersection, then in the center. Compare how each feels.
- Window light portraits. Photograph a family member or friend near a window with their eyes on the upper line, then with room in front of their gaze.
- Horizon practice. Shoot the view from a window or yard with the horizon on the upper line, lower line and middle.
- Crop practice. Take an existing photo, open it in an editor, and use the thirds overlay to crop it two or three ways.
- Still life. Arrange a few objects so the largest sits on one intersection and a smaller one balances it on another.
Review the pictures side by side and note which you prefer. That comparison teaches more than reading about the rule.
Fixing composition in editing
If a picture was shot with the subject in the middle, cropping can move it to a thirds position. Cropping reduces resolution, so shoot slightly wider when you can. Also avoid cropping that cuts awkwardly through a limb or removes too much breathing space.
Common questions
What is the 2/3 rule for pictures?
This is usually a variation on the rule of thirds: two-thirds of the frame given to one part of the scene (for example sky or ground) and one-third to the other. It is the same idea as placing the horizon on a thirds line.
What is the rule of 9 in photography?
The term is not standardized. It is often a loose name for the nine-square grid used in the rule of thirds, since the grid divides the frame into nine sections.
What are the 8 rules of photography?
There is no official list. Different websites compile their own sets, which typically include the rule of thirds, leading lines, symmetry, negative space, framing and perspective. Our framing and composition guide covers those in more depth.
What is the rule of thirds in a painting?
The same idea is used by painters and graphic designers: arrange key elements along the thirds lines to guide the viewer’s eye. Photography borrowed it from earlier visual arts.
When to ignore the rule
Centered, symmetrical compositions can be powerful, for example reflections, tunnels and formal portraits. Very tight crops, patterns and minimalist images may not benefit from a grid at all. If the picture feels better with the subject centered, trust that. A good routine is to learn the rule well enough that you notice when you are breaking it on purpose.
Foreground elements can also change how a thirds composition feels; see interesting foregrounds in photography for ideas.