Molten iron
Molten iron is iron in its liquid state, formed by heating solid iron above its melting point.
How big is it?
1,811 K
Also 2,800 °F
Temperature · defined reference

A little perspective
Molten iron is 437.8 K warmer than Lava.
Lava: Lava is molten rock that erupts from a volcano and flows on the Earth's surface before cooling and solidifying.
Measurements, assumptions & sources +
Molten iron
An approximate melting-temperature reference for pure iron; alloys behave differently.
Defined examples — our methodology
The marked temperature is calibrated. Unmeasured illustration details are representative.
Lava
A chosen 1,100 °C lava-temperature model; composition and eruption conditions vary.
Defined examples — our methodology
The marked temperature is calibrated. Unmeasured illustration details are representative.
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
Why this measurement?
Why we use 1,811 K
For comparison, this page uses temperature. This is labelled defined reference: an explicit comparison model rather than a claim that every example has the same value.
An approximate melting-temperature reference for pure iron; alloys behave differently.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
Molten iron dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 1,811 K | Not recorded | defined reference |
Around this scale
Go smaller. Go bigger.
These links use compatible temperature records, ordered around the selected value.
Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
There’s always another scale

