Cristiano Ronaldo has the most career goals per 90 in the Champions League, with 0.80.

best goals per 90 with a minimum of 15000 min by a player in ucl history

	NAME	G/90	MIN	G	SEASON	CLUB	M	START	G/M	A	G+A	PK	FK	SH	SOT	WOOD	TCH	TCH-BOX	OFF
1	Cristiano Ronaldo C. Ronaldo	0.00	291	0	2003-04	Man United	5	3	0.00			0
2	Cristiano Ronaldo C. Ronaldo	0.00	502	0	2004-05	Man United	7	6	0.00			0
3	Cristiano Ronaldo C. Ronaldo	0.00	506	0	2005-06	Man United	6	6	0.00			0
4	Cristiano Ronaldo C. Ronaldo	0.28	951	3	2006-07	Man United	11	11	0.27			0
5	Cristiano Ronaldo C. Ronaldo	0.73	986	8	2007-08	Man United	11	11	0.73			1
6	Cristiano Ronaldo C. Ronaldo	0.36	1,010	4	2008-09	Man United	12	11	0.33			0
7	Cristiano Ronaldo C. Ronaldo	1.40	450	7	2009-10	Real Madrid	6	5	1.17			0
8	Cristiano Ronaldo C. Ronaldo	0.53	1,021	6	2010-11	Real Madrid	12	12	0.50			1
9	Cristiano Ronaldo C. Ronaldo	1.00	900	10	2011-12	Real Madrid	10	10	1.00			2
10	Cristiano Ronaldo C. Ronaldo	1.00	1,080	12	2012-13	Real Madrid	12	12	1.00			0
11	Cristiano Ronaldo C. Ronaldo	1.59	963	17	2013-14	Real Madrid	11	11	1.55			2
12	Cristiano Ronaldo C. Ronaldo	0.85	1,065	10	2014-15	Real Madrid	12	12	0.83	4	14	3
13	Cristiano Ronaldo C. Ronaldo	1.33	1,079	16	2015-16	Real Madrid	12	12	1.33	3	19	2		92	38		638		11
14	Cristiano Ronaldo C. Ronaldo	0.90	1,200	12	2016-17	Real Madrid	13	13	0.92	5	17	0	1	73	27	3	660	93	15
15	Cristiano Ronaldo C. Ronaldo	1.15	1,170	15	2017-18	Real Madrid	13	13	1.15	3	18	4	0	82	34	3	598	128	18
16	Cristiano Ronaldo C. Ronaldo	0.72	748	6	2018-19	Juventus	9	9	0.67	2	8	1	0	48	13	1	446	51	2
17	Cristiano Ronaldo C. Ronaldo	0.51	712	4	2019-20	Juventus	8	8	0.50	1	5	1	0	40	15	0	421	47	11
18	Cristiano Ronaldo C. Ronaldo	0.63	570	4	2020-21	Juventus	6	6	0.67	2	6	2	0	22	11	1	310	40	9
19	Cristiano Ronaldo C. Ronaldo	0.88	612	6	2021-22	Man United	7	7	0.86	0	6	0	0	22	12	0	299	29	2
	Total	0.80	15,816	140			183	178	0.77	20	160	19