Three charts to help with converting recipes

I can never remember what weights convert to, nor what temperature different types of ovens cook at. In my life I have used conventional and fan ovens as well as gas ovens, so one recipe I may know for a gas oven, but now I use a fan oven, so I need to convert the recipe. I always end up having to look things up, so decided to keep all my conversion charts in one place. And now I'm sharing...

Yeast

Fresh yeast	Original dry yeast	Quick yeast
3g	1.5g	1g
6g	3g	2g
10g	4g	3g
12g	6g	4g
17g	7g	5g
34g	14g	10g
68g	28g	20g

Imperial and Metric

Ounces	Grams
1/2 oz	10g
3/4 oz	20g
1 oz	25g
1 1/2 oz	40g
2 oz	50g
2 1/2 oz	60g
3 oz	75g
4 oz	110g
4 1/2 oz	125g
5 oz	150g
6 oz	175g
7 oz	200g
8 oz	225g
9 oz	250g
10 oz	275g
12 oz	350g
1 lb	450g
1 lb 8 oz	700g
2 lb	900g
3 lb	1.35kg

Oven temperatures

Gas	°F	°C	Fan (°C)
1	275	140	120
2	300	150	130
3	325	170	150
4	350	180	160
5	375	190	170
6	400	200	180
7	425	220	200
8	450	230	210
9	475	240	220

Do let me know if you find them useful. What other charts should I be adding?