🪔 Lamp Shade Size Calculator
Find the perfect shade width, height, and fitter size for any lamp base
| Base Height | Shade Bottom Width | Shade Height | Top Diameter (Empire) | Typical Use |
|---|---|---|---|---|
| 4–6 in (10–15 cm) | 8–10 in (20–25 cm) | 5–6 in (13–15 cm) | 4–5 in | Mini / Accent |
| 7–9 in (18–23 cm) | 10–12 in (25–30 cm) | 6–8 in (15–20 cm) | 5–6 in | Bedside Table |
| 10–12 in (25–30 cm) | 12–16 in (30–41 cm) | 8–10 in (20–25 cm) | 6–8 in | Standard Table |
| 13–15 in (33–38 cm) | 16–18 in (41–46 cm) | 10–11 in (25–28 cm) | 8–9 in | Large Table |
| 16–18 in (41–46 cm) | 18–20 in (46–51 cm) | 11–12 in (28–30 cm) | 9–10 in | Large Table |
| 19–24 in (48–61 cm) | 20–24 in (51–61 cm) | 12–14 in (30–36 cm) | 10–12 in | Floor / Statement |
| Above 24 in (61 cm) | 22–28 in (56–71 cm) | 14–18 in (36–46 cm) | 11–14 in | Floor Lamp |
| Fitter Type | Fitter Size | Best For | Harp Required? |
|---|---|---|---|
| Spider (standard) | 1.5–2.5 in opening | Most table & floor lamps | Yes — measure harp height |
| Uno (direct) | Screw fits bulb socket | Bridge & torchiere lamps | No |
| Clip-On | Clips directly on bulb | Accent & chandelier lamps | No |
| Washer (notched) | 2.25 in notched ring | Retro & vintage bases | No |
| Shade Height | Recommended Harp Height | Harp Size (common) | Note |
|---|---|---|---|
| 5–7 in | 4–6 in | 4 in, 5 in | Small accent shades |
| 7–9 in | 6–8 in | 7 in, 8 in | Standard bedside |
| 9–11 in | 8–10 in | 9 in, 10 in | Most common size |
| 11–13 in | 10–12 in | 11 in, 12 in | Large table lamps |
| 13–16 in | 12–15 in | 13 in, 14 in, 15 in | Floor lamp shades |
| Style | Top : Bottom Ratio | Height : Bottom Ratio | Typical Look |
|---|---|---|---|
| Empire | 40% of bottom | 65% of bottom width | Classic, traditional |
| Drum | 100% (equal) | 55% of bottom width | Modern, clean |
| Bell | 35% of bottom | 70% of bottom width | Elegant, curved |
| Coolie | 20% of bottom | 40% of bottom width | Asian-inspired |
| Square | 100% (equal) | 55% of bottom width | Contemporary |
| Oval | Equal to top oval | 60% of long axis | Decorative |
Find the right size for a Lamp Shade can seem hard, but some basic rules really help. The size of shades one finds by the width below and one measures it from the top to the bottom of the clip system. It matters to get exact values, whether for a lamp on a table buffet or floor.
Useful starting points are these: the shade should be about twice as broad as the base of the lamp. The height of it should reach about one third of the whole lamp height. One can also consider, that the shade height matches two thirds of the base, that one measures from the bottom to the top of the neck.
How to Choose the Right Size Lamp Shade
Either way, the main idea stays, that everything look well balanced.
Also, the shade should be at least half inch broader than the broadest base part on both sides. Actually, some tips mention at least one centimetre extra on all two sides. When one hestiates between two choices, usually best choose the bigger.
Normally big lamp bases work well with shades of 14 to 16 inches. For larger bases fit shades in 20 inches or even more. Commonly one finds ready made round shades in widths of 12, 14 and 18 inches, although one can order usual size.
The harp, that sets the shade to the lamp, is removable. The whole height of the shade should not pass the harp height plus half inch, neither less then harp height minus half inch. When the shade too high sits, a shorter harp settles that problem.
Also the room itself plays a role. Too big a shade fails in small, narrow space. But in a large, open area a bigger version can impress well.
The width of the shade should be less than the depth of the furniture, on that the lamp stands. Also, the whole lamp height should not pass 1.5 times the table height, on that it finds itself. For floor lamps, the total height should be around 58 to 64 inches, and the shade bottom should reach or pass the eye level of sitting folk.
When one replaces an old shade and is happy about its shape, simply measure it with a line or tape. Those values help to easily find an identical replacement. Also, the shade must cover the neck fully.
Thatsimple spot ensures, that everything seems tidy and right.
