How Long Should a Candle Burn? Soy Candle Burn Time Explained
You bought a beautiful candle. The label says 50 hours. Three weeks later it’s gone and you’re wondering where the time went. Here’s what’s actually going on with candle burn time — and how to maximize every hour.
What Controls Burn Time
Wax type matters most. Soy wax burns slower and cooler than paraffin, which is why a 13 oz soy candle typically delivers 50–60 hours while the same size in paraffin might give you 35–40. (We wrote a full comparison here.)
Wick size is the throttle. A wider wick = bigger flame = faster burn. Quality candles match wick size to jar diameter so the melt pool reaches the edge without racing through wax.
Jar shape plays a role. Wide, shallow jars burn faster (more surface area). Tall, narrow jars burn slower. Our Simple Flame jars are designed tall for a reason — more hours per dollar.
The Numbers: What to Expect
| Candle size | Soy wax (approx.) | Paraffin (approx.) |
|---|---|---|
| 7 oz tin | 25–30 hours | 18–22 hours |
| 13 oz jar | 50–60 hours | 35–40 hours |
| 3-wick large | 30–40 hours | 20–30 hours |
These assume proper burning (see below). Burn it wrong and you can easily lose 30% of the potential life.
How to Get Maximum Burn Time
1. The first burn is everything. Let the wax melt all the way to the edge of the jar on the first light. This takes 2–3 hours for a 13 oz candle. Skip this and you’ll get tunneling — wax stuck to the sides that never burns.
2. Trim the wick to ¼ inch every time. A long wick creates a tall flame that eats wax fast and produces soot. (Full guide here.)
3. Keep burns to 3–4 hours max. Beyond that, the jar overheats, the wick mushrooms, and you’re wasting wax to excess heat rather than fragrance.
4. Keep it out of drafts. Air conditioning vents, open windows, and fans make the flame flicker and burn unevenly — and faster.
5. Store properly. Keep unburned candles in a cool, dark place. Heat and sunlight degrade both wax and fragrance oils before you ever light them.
When to Stop Burning
Stop using a candle when about ½ inch of wax remains. Burning to the very bottom overheats the glass and can crack the jar. (Save those last bits — you can melt them in a wax warmer for bonus fragrance hours.)
The Bottom Line
A well-made 13 oz soy candle should give you roughly two months of evening ambiance at an hour a night. If yours is disappearing faster, the culprit is almost always wick length or short first burns — both easy fixes.
Shop long-lasting soy candles — hand-poured, 100% natural soy wax, designed for maximum burn time.