Home & Furniture calculator
What Floor Lamp Size Do I Need?
Use nearby seat height, target light height above floor, available floor width to find floor-lamp height, base width and clearance target.
Enter your measurements
What Floor Lamp Size Do I Need uses nearby seat height, target light height above floor, available floor width and the other configured measurements to return floor-lamp height, base width and clearance target with a formula written specifically for this tool.
- Nearby seat height — Required
- Target light height above floor — Required
- Available floor width — Required
- Desired shade clearance — Required
Floor-lamp height, base width and clearance target
Enter the measurements above to calculate floor-lamp height, base width and clearance target.
How the calculation works
V17 calculation: recommendedLampHeight=readingSurfaceHeight; maxBaseWidth=availableBaseWidth; seatToReadingSurfaceDifference=readingSurfaceHeight-seatHeight; requiredShadeClearance=shadeClearance. The result is reported as Floor-lamp height, base width and clearance target.
Worked example
Example: Nearby seat height = 45 cm; Target light height above floor = 125 cm; Available floor width = 60 cm; Desired shade clearance = 5 cm. Result: Recommended Lamp Height = 125 cm; Required Shade Clearance = 5 cm; Seat To Reading Surface Difference = 80 cm; Max Base Width = 60 cm.
Before you decide
Recheck the limiting measurement before purchase or installation. This page calculates the stated geometry or quantity only; product-specific construction or installation details can still affect the final choice. For what floor lamp size do i need, the limiting result on this page is floor lamp size.
Direct measurement/geometry calculation. No external reference is required for the arithmetic itself; the result is derived only from the user-entered measurements and the formula stored in calculationLogicJson.
Frequently asked questions
What does the Floor Lamp Size calculator tell me?
It returns floor lamp size from the measurements entered on this page. The calculation is specific to floor lamp size, so the result should be compared with the exact product or specification you are considering.
Which measurements should I take for floor lamp size?
Measure nearby seat height, target light height above floor, available floor width, desired shade clearance. Use clear, usable dimensions rather than nominal room or product labels.
Should I round the floor lamp size?
Keep the calculated value for comparison, then choose a real product that meets or stays within the returned floor lamp size while allowing for the clearances, tolerances or ratings shown by its manufacturer.