A furnace takes 200 ticks, 10 seconds, per item. A blast furnace and a smoker take 100 ticks, 5 seconds. Blast furnaces smelt only ores and smokers cook only food, so regular furnaces handle everything else.
Carregando ferramenta… / Loading tool…
Work out the time and the fuel to smelt any number of items in a furnace, blast furnace or smoker, and compare fuels.
A furnace takes 200 ticks, which is 10 seconds, to smelt one item. Blast furnaces and smokers take 100 ticks, 5 seconds, so they work twice as fast. Twenty ticks make a second, so 64 items in one furnace take 640 seconds. Every fuel has a burn time in ticks, measured in a furnace. Coal burns 1,600 ticks, enough for 8 items, and a lava bucket burns 20,000 ticks for 100 items. Blast furnaces and smokers burn fuel twice as fast but still smelt the same number of items per unit, so the fuel bill does not change, only the time. The tool divides the work by the number of furnaces you run in parallel. Each furnace has its own fuel gauge, so each one rounds its fuel up to a whole unit, and the surplus shows what is left over. The inverse mode starts from the fuel you have and tells you how many items it smelts.
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<iframe
src="https://jkit.tools/embed/en-US/minecraft-furnace-calculator"
width="100%"
height="600"
style="border:0"
loading="lazy"
title="Minecraft Furnace and Fuel Calculator"
></iframe>These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.
A furnace takes 200 ticks, 10 seconds, per item. A blast furnace and a smoker take 100 ticks, 5 seconds. Blast furnaces smelt only ores and smokers cook only food, so regular furnaces handle everything else.
| Fuel | Ticks | Items/unit | Needed |
|---|---|---|---|
| 20,000 | 100 | 1 | |
| 16,000 | 80 | 1 | |
| 4,000 | 20 | 4 | |
| 2,400 | 12 | 6 | |
| 1,600 | 8 | 8 | |
| 1,600 | 8 | 8 | |
| 1,200 | 6 | 11 | |
| 300 | 1.5 | 43 | |
| 300 | 1.5 | 43 | |
| 200 | 1 | 64 | |
| 200 | 1 | 64 | |
| 100 | 0.5 | 128 | |
| 100 | 0.5 | 128 | |
| 50 | 0.25 | 256 | |
| 50 | 0.25 | 256 |