Artwork Height Calculator

Pictures are hung by the centre and measured by the eye, and the two rules that matter are that the centre should sit close to eye level and that whatever is below the frame gets a deliberate gap rather than an accidental one. The gallery standard of 145 centimetres to the centre is a compromise: it suits a standing viewer of average height, it puts pictures of different sizes on a common line so a wall reads as one composition, and it is low enough to work over a sofa. This takes your eye height and your furniture instead, and gives you the centre, the top and the bottom, plus the gap left over the piece below.

Picture, viewer and what is underneath

Hang to the centre, not to the top.

The frame, not the image.

Standing eye level is about 1.6 m; seated, about 1.15 m.

Fifteen centimetres gives the 145 cm gallery line at a 1.6 m eye height.

Sofa back, sideboard top, or zero for a plain wall.

Reading your inputs

Result

Centre height—mWhere the middle of the frame goes
Bottom of frame—m
Top of frame—m
Above the furniture—m

Inputs changed since this was worked out. Run it again for the current numbers.

Why the centre and not the top

Because pictures are not all the same size, and hanging by the top edge means a small picture ends up high and a large one low, so a wall of several frames reads as a scatter rather than as a grouping. Hanging by the centre puts every frame on the same line, and the eye reads that line as intentional even when the frames differ in size, orientation and subject.

It is also the only method that survives a change of picture. A wall hung on a centre line at 145 centimetres takes anything you put on it; a wall hung by eye against one particular frame has to be re-measured every time that frame moves. If you are hanging a group, work the group out as one shape first and hang the centre of that shape on the line.

145cmthe gallery standard for the centre of a frame.
115cmseated eye level — the line to use in a dining room or over a desk.
25cmthe gap over a sofa back that looks deliberate rather than accidental.

The two contexts, and why they differ

In a hallway, a staircase or anywhere people are standing and moving, the centre goes at standing eye level or a little below, which is where the 145 figure comes from. In a dining room, a study or anywhere people are sitting for long periods, it goes at seated eye level — around 115 centimetres — because that is where the picture is actually looked at, and a picture hung for a standing viewer in a room where everyone sits is a picture nobody sees properly.

Over a sofa, a sideboard or a mantel, the furniture takes over. The rule there is the gap: somewhere between fifteen and twenty-five centimetres between the top of the furniture and the bottom of the frame. Less than ten reads as the picture resting on the furniture; more than forty reads as two separate things stacked on the same wall.

What changes the line

Centre height, in centimetres, by situation.

Gallery or hallwayStanding eye level, less 15 cm
Over a sofaSet by the gap above the back
Dining roomSeated eye level
Above a mantelSet by the shelf, not the eye
Stair wallFollows the slope, not the floor
Gallery wall, groupedCentre of the whole group
A stair wall is not a wall

On a staircase, eye level follows the slope, so a picture hung at a constant height above the floor is progressively too high as you go up and too low as you come down.

Hang each frame at the same distance above the nosing of the tread below it, not at the same distance above the floor.

Size, and the wall it is going on

A picture should occupy somewhere between a third and two-thirds of the wall it hangs on — measured as the width of the frame against the width of the wall or furniture below it. Under about a quarter and it reads as a small object floating in a large space; over about three-quarters and it reads as though it is fighting the wall.

Over furniture, the useful measure is the furniture rather than the wall: a frame should be between half and three-quarters of the width of the sofa or sideboard beneath it. A frame the full width of the sofa looks like a headboard; a frame a quarter of it looks like an afterthought.

SituationCentreGap belowFrame vs furniture
Hallway145 cmn/aA third of the wall width
Over a sofaSet by the gap20 to 25 cmHalf to three-quarters of the sofa
Over a sideboardSet by the gap15 to 20 cmUnder two-thirds of the unit
Dining room115 cmn/aA third to a half of the wall
Above a bedSet by the gap15 to 20 cmUnder three-quarters of the bed
Grouped gallery wall145 cmn/aTreat the group as one shape
What to aim for, by situation.

A worked example

  1. The lineA 1.6 m eye height less 15 cm puts the centre at 1.45 m — the gallery figure.
  2. The frameA 0.7 m frame runs 0.35 m either side of that: bottom at 1.10 m, top at 1.80 m.
  3. Over the sofaWith a 0.85 m sofa back, that leaves 0.25 m of gap — at the generous end of the range.
  4. To the ceilingOn a 2.4 m ceiling there is 0.60 m above the frame.
  5. ProportionThe frame fills 29% of the wall height, which is about right for a single piece.

A quarter of a metre over a sofa back is a deliberate gap and it is what makes the arrangement read as a composition rather than as a picture that happens to be near a sofa.

Hanging it

Mark the centre line, then measure down half the frame and up half the frame from it. Find the hanging point on the back of the frame — the wire pulled taut, or the bracket — and measure from there to the top of the frame, because that distance is not half the height. Get that wrong and the picture ends up ten centimetres out.

Use two fixings where you can, not one. A single nail lets a frame swing, and a frame that has swung out of true is the most common reason a picture looks wrong on a wall that has been measured correctly. A pair of small nails at the two top corners, or a French cleat, holds it flat and level.

Then check the wall itself is doing its share: the wall area figure gives the surface if the whole wall is being decorated around the arrangement, and the shelf spacing figure does the same job for a shelf or a picture rail. Where a screen or a piece of art is being viewed from a fixed seat rather than from anywhere in the room, the viewing distance figure is the one that sets the geometry.

Do

  • Hang by the centre, so pictures of different sizes share one line.
  • Use seated eye level in a room where people sit.
  • Set the gap over furniture deliberately, between 15 and 25 cm.
  • Measure from the hanging point on the frame, not from half its height.
  • Treat a grouped wall as one shape and hang the centre of that.

Avoid

  • Hanging by the top edge, so small pictures end up high.
  • Using standing eye level in a dining room.
  • Leaving a picture apparently resting on the sofa back.
  • Assuming the wire's apex is at half the frame height.
  • Hanging a stair wall at a constant height above the floor.

Where the numbers stop being true

A single frame on a plain wall is the easy case. A grouped wall is not: the centre line applies to the group as a whole, and the individual frames within it are then spaced by eye rather than by arithmetic, usually five to ten centimetres apart, tighter for a formal grid and looser for a salon hang.

Nothing here accounts for the picture's own weight of interest. A very dark, very large, or very brightly coloured piece can carry a lower or higher position than the rule suggests, and a piece with strong internal perspective often wants to be a little below eye level so the viewer is looking into it rather than up at it.

And the eye height is a single figure for a room that may have viewers of very different heights. Where that matters — a family room, a school, a public space — the honest answer is to split the difference and go slightly lower, because a picture hung for the shortest viewer is still comfortable for the tallest, and the reverse is not true.

Hang the centre on the line and set the gap over the sofa on purpose. Those two decisions are the whole job.

How the figures are produced

The centre is the viewer's eye height less the offset you have chosen, which at a 1.6 metre eye height and a 15 centimetre offset gives the 145 centimetre gallery line. The bottom and top are half the frame height either side of that. The gap over the furniture is the bottom less the height of whatever is underneath, and the remaining wall above is the ceiling height less the top of the frame.

Questions people ask

What height should I hang pictures?

145 cm to the centre is the standard. In a room where people sit, use seated eye level instead — about 115 cm.

How high over a sofa?

Fifteen to twenty-five centimetres above the back. Less looks like it is resting on it; more looks like two separate things.

Do I measure to the top or the centre?

The centre. It puts frames of different sizes on one line and it survives changing the picture.

What if I have very high ceilings?

The eye does not move. Hang at the same height and accept more wall above, or use a taller frame or a vertical group to fill it.

How do I hang a group?

Lay it out on the floor first, treat the whole arrangement as one rectangle, and hang the centre of that on the line.

Should pictures be level with each other?

Their centres, yes. Their tops and bottoms will differ, and that is correct.