The equivalent gas mark would be 4, although all ovens vary so check the documentation that came with your own to be certain.
Gas mark 3 is equivalent to about 165 degrees Celsius.
310 degrees Fahrenheit corresponds to a gas mark of approximately 2.5. In terms of cooking, this temperature is considered low, suitable for slow cooking or gentle baking. If you're using a gas oven that only has whole number gas marks, you might round it to gas mark 3 for practical purposes.
300-450 Degrees (Fahrenheit) on a Gas BurnerThe temperature varies according to which setting is being used, eg275 Degrees Fahrenheit at Gas Mark One300 Degrees Fahrenheit at Gas Mark Two325 Degrees Fahrenheit at Gas Mark Three350 Degrees Fahrenheit at Gas Mark Four375 Degrees Fahrenheit at Gas Mark Five400 Degrees Fahrenheit at Gas Mark Six425 Degrees Fahrenheit at Gas Mark Seven450 Degrees Fahrenheit at Gas Mark Eight
Gas mark 3 is equivalent to 160°C.
In the UK gas mark system, 100 degrees Celsius is equivalent to Gas Mark ¼. This setting is generally used for very low cooking temperatures, such as for slow baking or keeping food warm. If you need to convert this to Fahrenheit, it would be approximately 212 degrees Fahrenheit.
300 degrees Fahrenheit is equivalent to gas mark 2.
200 degrees Celsius is equivalent to gas mark 6.
between gas mark 3 and 4.
200 degrees Celsius is equal to gas mark 6.
Gas mark 4 is equivalent to 176.67 degrees Celsius.
4-5 gas Mark
Degrees Fahrenheit Degrees Celsius Gas MarkDescription 2251101/4Very slow250 120/1301/2Very slow275 1401Slow300 1502Slow325 160/1703Moderate350 1804Moderate375 1905Moderately hot400 2006Moderately hot425 2207Hot450 2308Hot475 2409Very hot