Donald Royal had the most free throws per field goal when playing 500+ games, with 1.28.

Interpreted as:

most ftm / fgm by a player, min 500 games

	NAME	FTM/FGM	GP	FTM	FGM	MPG	PPG	RPG	APG	SPG	BPG	FGA	FG%	3PM	3PA	3P%	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Donald Royal D. Royal	1.28	504	1,233	964	16.8	6.3	2.8	1.0	0.5	0.2	4.0	47.3	0.0	0.0	0.0	3.2	77.0	57.7	1.1	1.7	1.1	8,442	3,161	1,431	500	247	99	543	868	-63
2	Chuck Share C. Share	1.15	596	1,804	1,562	21.9	8.3	8.4	1.4			6.6	40.0				4.4	69.3	48.8				13,023	4,928	4,986	809				2,106
3	Harry Gallatin H. Gallatin	1.15	682	3,223	2,810	31.9	13.0	11.9	1.8			10.3	39.8				6.1	77.3	49.7				15,813	8,843	6,684	1,208				2,086
4	Dolph Schayes D. Schayes	1.14	996	6,712	5,863	34.4	18.5	12.1	3.1			15.5	38.0				7.9	84.9	48.8				29,800	18,438	11,256	3,072				3,432
5	Corey Maggette C. Maggette	1.13	827	4,605	4,065	28.2	16.0	4.9	2.1	0.7	0.2	10.8	45.3	0.6	1.7	32.4	6.8	82.2	57.7	1.1	3.8	2.3	23,358	13,198	4,022	1,696	590	139	1,874	2,338	-1542
6	Jarron Collins J. Collins	1.07	542	731	682	15.8	3.9	2.9	0.8	0.3	0.2	2.8	45.5	0.0	0.0	0.0	1.9	69.9	53.4	1.2	1.7	0.6	8,542	2,095	1,579	419	138	98	334	1,316	+39
7	Bobby Wanzer B. Wanzer	1.05	568	2,388	2,268	32.5	12.2	4.5	3.2			10.2	39.3				5.2	80.2	48.9				12,128	6,924	1,979	1,830				1,275
8	Cedric Maxwell C. Maxwell	1.05	835	3,598	3,433	28.5	12.5	6.3	2.2	0.8	0.5	7.5	54.6	0.0	0.0	5.3	5.5	78.4	62.9	2.5	3.8	2.2	23,769	10,465	5,261	1,862	671	433	1,841	2,273
9	Neil Johnston N. Johnston	1.03	516	3,417	3,303	35.5	19.4	11.3	2.5			14.4	44.4				8.6	76.8	53.4				18,298	10,023	5,856	1,269				1,681
10	Walter Dukes W. Dukes	1.02	553	1,941	1,912	26.5	10.4	11.3	1.1			9.4	36.9				5.0	70.0	45.1				14,671	5,765	6,223	608				2,260
11	Ed Macauley E. Macauley	1	641	3,750	3,742	35.7	17.5	7.5	3.2			13.4	43.6				7.7	76.1	52.2				18,071	11,234	4,325	2,079				1,667
12	James Harden J. Harden	1	1,151	8,164	8,174	34.8	24.1	5.6	7.2	1.5	0.6	16.2	43.9	2.8	7.6	36.3	8.2	86.1	60.8	0.8	4.9	3.7	40,011	27,687	6,473	8,316	1,715	655	4,260	2,857	+4610
13	Kenny Sears K. Sears	0.98	529	2,425	2,465	28.2	13.9	7.1	1.6			10.2	45.5				5.6	82.6	54.8				14,927	7,355	3,755	843				1,470
14	Reggie Evans R. Evans	0.97	809	1,074	1,107	19.2	4.1	7.1	0.6	0.7	0.1	2.9	46.5	0.0	0.0	9.1	2.5	52.8	50.2	2.5	4.7	1.1	15,572	3,289	5,765	458	566	115	897	1,895	-701
15	Jimmy Butler III J. Butler III	0.96	869	4,920	5,147	33.1	18.3	5.3	4.3	1.6	0.4	12.6	47.2	0.8	2.4	32.8	6.7	84.3	59.0	1.7	3.7	1.6	28,790	15,898	4,647	3,772	1,400	379	1,399	1,196	+2493
16	Chauncey Billups C. Billups	0.95	1,043	4,496	4,738	31.6	15.2	2.9	5.4	1.0	0.2	10.9	41.5	1.8	4.5	38.7	4.8	89.4	58.0	0.5	2.4	2.0	33,008	15,802	2,992	5,636	1,051	168	2,138	2,169	+2655
17	Kevin Ollie K. Ollie	0.94	662	797	845	15.6	3.8	1.5	2.3	0.5	0.0	3.1	41.0	0.0	0.0	31.0	1.5	79.2	49.9	0.2	1.3	0.7	10,297	2,496	1,018	1,501	335	25	492	807	-633
18	Larry Foust L. Foust	0.94	817	3,570	3,814	29.2	13.7	9.8	1.7			11.5	40.5				5.9	74.1	48.5				21,890	11,198	8,041	1,368				2,909
19	Danny Schayes D. Schayes	0.93	1,138	2,788	2,994	19.3	7.7	5.0	1.1	0.5	0.7	5.5	48.1	0.0	0.0	13.3	3.0	80.6	56.6	1.6	3.4	1.4	21,975	8,780	5,671	1,299	560	840	1,572	3,494	+3
20	Kevin Martin K. Martin	0.93	714	3,561	3,847	30.2	17.4	3.2	1.9	0.9	0.1	12.3	43.7	1.6	4.2	38.4	5.7	87.0	58.5	0.6	2.6	1.7	21,559	12,396	2,278	1,352	643	78	1,200	1,361	-200
21	Arnie Risen A. Risen	0.92	637	2,413	2,610	28.3	12.0	9.7	1.7			10.8	38.1				5.4	69.9	45.6				12,690	7,633	5,011	1,058				2,449
22	Bill Hanzlik B. Hanzlik	0.92	748	1,696	1,836	20.8	7.2	2.8	2.8	1.0	0.3	5.7	43.4	0.1	0.3	21.3	2.9	78.1	52.2	0.9	1.8	1.5	15,534	5,414	2,058	2,058	727	205	1,090	2,222
23	Eric Williams E. Williams	0.91	658	1,693	1,865	23.9	8.6	3.3	1.4	0.8	0.2	6.8	41.5	0.3	1.0	31.8	3.5	73.6	51.3	1.1	2.2	1.2	15,731	5,642	2,139	936	548	103	789	1,596	-483
24	Moses Malone M. Malone	0.9	1,329	8,531	9,435	33.9	20.6	12.2	1.4	0.8	1.3	14.5	49.1	0.0	0.1	10.0	8.3	76.9	56.9	5.1	7.1	3.1	45,071	27,409	16,212	1,796	1,089	1,733	3,804	3,076
25	Ray Felix R. Felix	0.9	637	2,162	2,406	23.8	10.9	8.9	0.7			9.2	41.2				5.0	67.8	48.1				15,187	6,974	5,654	456				2,419