Window candle count
Quick count of window candles from the number of windows and candles per window (plus optional spares).
candles = windows × candles_per_window · order = ceil(candles × (1 + spare_%))
When to use
Use this page when you need a transparent window candle count estimate before you buy décor or hang lights in Prince William County. You will enter number of windows, candles per window, spare candles (%), and stories / floors with windows (optional label).
Quick count of window candles from the number of windows and candles per window (plus optional spares). Read the formula and worked example so the number is arithmetic you can check — not a guess from last year.
If a product package publishes its own coverage chart, keep that chart in the loop — this tool is the independent check.
Use 1 for a classic single candle; 2–3 for wider sills.
Does not change math — helps you inventory by floor.
Worked example
Start with the calculator’s default entries: Number of windows = 12; Candles per window = 1; Spare candles (%) = 10; Stories / floors with windows (optional label) = 2.
With those entries the calculator returns:
Candles for display: 12
Order with spare: 14
Inventory across about 2 floor(s) — math is windows × candles/window.
Formula used: candles = windows × candles_per_window · order = ceil(candles × (1 + spare_%))
Recompute the first line by hand from the formula. If your arithmetic and the result differ by more than rounding, the usual cause is a unit mix-up (inches vs feet, percent vs decimal) rather than the formula.
What changes if you change one input? Raise Number of windows from 12 to 18 and leave everything else alone. The result becomes:
Candles for display: 18
Order with spare: 20
Changing one measured value at a time like this shows which input drives the answer, so you know which value is worth measuring twice before you buy.
Limits / assumptions
This window candle count page models only the arithmetic in the formula box. Taste, HOA rules, and neighbor sightlines are still on you.
If a result looks off, recheck it against the worked example. If your setup violates an assumption on the page, do not lean on the headline number alone.
Output is for estimating and shopping lists — not a legal determination and not a replacement for outdoor electrical safety.
FAQ
How many candles per window?
Most Colonial-style displays use one centered candle; wide picture windows may look better with two or three.
Battery or plug-in?
Count is the same. Plug-in sets still need outlet and cord planning.
Should I buy spares?
Yes — bulbs and bases fail; a small spare percentage avoids dark windows mid-season.
Only front windows?
Count only the windows you will dress, not every opening on the house.