How fast you go in every chainring and cog combination at 60 to 110 pedal revolutions per minute. Find the chart for your chainring, the row for your cog and the column for your cadence.
Speed comes from multiplying the development (the distance you travel per pedal revolution) by your cadence: km/h = meters × rpm × 0.06, and mph = gear inches × rpm × 0.002975. It’s the same math our gear calculator does, and it doesn’t depend on your fitness: if you hold that cadence in that gear, that’s your speed, uphill or down. The reference wheels are 700 × 28 mm on road bikes, 700 × 40 mm on gravel and 29 × 2.4 in on mountain bikes. Each speed cell shows mph first and km/h in parentheses; the second column gives gear inches, the classic US measure of how big a gear is, with the development in meters alongside.
50-tooth chainring (compact)
Gear
Gear inches (development)
60 rpm, mph (km/h)
70 rpm
80 rpm
90 rpm
100 rpm
110 rpm
50×11
121.0 in (9.66 m)
21.6 (34.8)
25.2 (40.6)
28.8 (46.4)
32.4 (52.2)
36.0 (57.9)
39.6 (63.7)
50×12
110.9 in (8.85 m)
19.8 (31.9)
23.1 (37.2)
26.4 (42.5)
29.7 (47.8)
33.0 (53.1)
36.3 (58.4)
50×13
102.4 in (8.17 m)
18.3 (29.4)
21.3 (34.3)
24.4 (39.2)
27.4 (44.1)
30.5 (49.0)
33.5 (53.9)
50×14
95.1 in (7.59 m)
17.0 (27.3)
19.8 (31.9)
22.6 (36.4)
25.5 (41.0)
28.3 (45.5)
31.1 (50.1)
50×15
88.8 in (7.08 m)
15.8 (25.5)
18.5 (29.7)
21.1 (34.0)
23.8 (38.2)
26.4 (42.5)
29.0 (46.7)
50×16
83.2 in (6.64 m)
14.9 (23.9)
17.3 (27.9)
19.8 (31.9)
22.3 (35.9)
24.8 (39.8)
27.2 (43.8)
50×17
78.3 in (6.25 m)
14.0 (22.5)
16.3 (26.2)
18.6 (30.0)
21.0 (33.7)
23.3 (37.5)
25.6 (41.2)
50×19
70.1 in (5.59 m)
12.5 (20.1)
14.6 (23.5)
16.7 (26.8)
18.8 (30.2)
20.8 (33.5)
22.9 (36.9)
50×21
63.4 in (5.06 m)
11.3 (18.2)
13.2 (21.2)
15.1 (24.3)
17.0 (27.3)
18.9 (30.4)
20.7 (33.4)
50×24
55.5 in (4.43 m)
9.9 (15.9)
11.6 (18.6)
13.2 (21.2)
14.9 (23.9)
16.5 (26.6)
18.2 (29.2)
50×27
49.3 in (3.93 m)
8.8 (14.2)
10.3 (16.5)
11.7 (18.9)
13.2 (21.2)
14.7 (23.6)
16.1 (26.0)
50×30
44.4 in (3.54 m)
7.9 (12.7)
9.2 (14.9)
10.6 (17.0)
11.9 (19.1)
13.2 (21.2)
14.5 (23.4)
50×34
39.2 in (3.12 m)
7.0 (11.2)
8.2 (13.1)
9.3 (15.0)
10.5 (16.9)
11.6 (18.7)
12.8 (20.6)
34-tooth chainring (compact)
Gear
Gear inches (development)
60 rpm, mph (km/h)
70 rpm
80 rpm
90 rpm
100 rpm
110 rpm
34×11
82.3 in (6.57 m)
14.7 (23.6)
17.1 (27.6)
19.6 (31.5)
22.0 (35.5)
24.5 (39.4)
26.9 (43.3)
34×12
75.4 in (6.02 m)
13.5 (21.7)
15.7 (25.3)
18.0 (28.9)
20.2 (32.5)
22.4 (36.1)
24.7 (39.7)
34×13
69.6 in (5.56 m)
12.4 (20.0)
14.5 (23.3)
16.6 (26.7)
18.6 (30.0)
20.7 (33.3)
22.8 (36.7)
34×14
64.7 in (5.16 m)
11.5 (18.6)
13.5 (21.7)
15.4 (24.8)
17.3 (27.9)
19.2 (31.0)
21.2 (34.1)
34×15
60.4 in (4.82 m)
10.8 (17.3)
12.6 (20.2)
14.4 (23.1)
16.2 (26.0)
18.0 (28.9)
19.8 (31.8)
34×16
56.6 in (4.52 m)
10.1 (16.3)
11.8 (19.0)
13.5 (21.7)
15.1 (24.4)
16.8 (27.1)
18.5 (29.8)
34×17
53.3 in (4.25 m)
9.5 (15.3)
11.1 (17.8)
12.7 (20.4)
14.3 (22.9)
15.8 (25.5)
17.4 (28.0)
34×19
47.6 in (3.80 m)
8.5 (13.7)
9.9 (16.0)
11.3 (18.3)
12.8 (20.5)
14.2 (22.8)
15.6 (25.1)
34×21
43.1 in (3.44 m)
7.7 (12.4)
9.0 (14.4)
10.3 (16.5)
11.5 (18.6)
12.8 (20.6)
14.1 (22.7)
34×24
37.7 in (3.01 m)
6.7 (10.8)
7.9 (12.6)
9.0 (14.4)
10.1 (16.3)
11.2 (18.1)
12.3 (19.9)
34×27
33.5 in (2.68 m)
6.0 (9.6)
7.0 (11.2)
8.0 (12.8)
9.0 (14.4)
10.0 (16.1)
11.0 (17.7)
34×30
30.2 in (2.41 m)
5.4 (8.7)
6.3 (10.1)
7.2 (11.6)
8.1 (13.0)
9.0 (14.4)
9.9 (15.9)
34×34
26.6 in (2.12 m)
4.8 (7.6)
5.5 (8.9)
6.3 (10.2)
7.1 (11.5)
7.9 (12.7)
8.7 (14.0)
52-tooth chainring (semi-compact)
Gear
Gear inches (development)
60 rpm, mph (km/h)
70 rpm
80 rpm
90 rpm
100 rpm
110 rpm
52×11
125.9 in (10.04 m)
22.5 (36.2)
26.2 (42.2)
30.0 (48.2)
33.7 (54.2)
37.4 (60.3)
41.2 (66.3)
52×12
115.4 in (9.21 m)
20.6 (33.1)
24.0 (38.7)
27.5 (44.2)
30.9 (49.7)
34.3 (55.2)
37.8 (60.8)
52×13
106.5 in (8.50 m)
19.0 (30.6)
22.2 (35.7)
25.3 (40.8)
28.5 (45.9)
31.7 (51.0)
34.9 (56.1)
52×14
98.9 in (7.89 m)
17.7 (28.4)
20.6 (33.1)
23.5 (37.9)
26.5 (42.6)
29.4 (47.4)
32.4 (52.1)
52×15
92.3 in (7.37 m)
16.5 (26.5)
19.2 (30.9)
22.0 (35.4)
24.7 (39.8)
27.5 (44.2)
30.2 (48.6)
52×16
86.5 in (6.91 m)
15.4 (24.9)
18.0 (29.0)
20.6 (33.1)
23.2 (37.3)
25.7 (41.4)
28.3 (45.6)
52×17
81.4 in (6.50 m)
14.5 (23.4)
17.0 (27.3)
19.4 (31.2)
21.8 (35.1)
24.2 (39.0)
26.7 (42.9)
52×19
72.9 in (5.82 m)
13.0 (20.9)
15.2 (24.4)
17.3 (27.9)
19.5 (31.4)
21.7 (34.9)
23.8 (38.4)
52×21
65.9 in (5.26 m)
11.8 (18.9)
13.7 (22.1)
15.7 (25.3)
17.7 (28.4)
19.6 (31.6)
21.6 (34.7)
52×24
57.7 in (4.60 m)
10.3 (16.6)
12.0 (19.3)
13.7 (22.1)
15.4 (24.9)
17.2 (27.6)
18.9 (30.4)
52×27
51.3 in (4.09 m)
9.2 (14.7)
10.7 (17.2)
12.2 (19.6)
13.7 (22.1)
15.3 (24.6)
16.8 (27.0)
52×30
46.2 in (3.68 m)
8.2 (13.3)
9.6 (15.5)
11.0 (17.7)
12.4 (19.9)
13.7 (22.1)
15.1 (24.3)
52×34
40.7 in (3.25 m)
7.3 (11.7)
8.5 (13.6)
9.7 (15.6)
10.9 (17.5)
12.1 (19.5)
13.3 (21.4)
36-tooth chainring (semi-compact)
Gear
Gear inches (development)
60 rpm, mph (km/h)
70 rpm
80 rpm
90 rpm
100 rpm
110 rpm
36×11
87.1 in (6.95 m)
15.6 (25.0)
18.1 (29.2)
20.7 (33.4)
23.3 (37.5)
25.9 (41.7)
28.5 (45.9)
36×12
79.9 in (6.37 m)
14.3 (22.9)
16.6 (26.8)
19.0 (30.6)
21.4 (34.4)
23.8 (38.2)
26.1 (42.1)
36×13
73.7 in (5.88 m)
13.2 (21.2)
15.4 (24.7)
17.5 (28.2)
19.7 (31.8)
21.9 (35.3)
24.1 (38.8)
36×14
68.5 in (5.46 m)
12.2 (19.7)
14.3 (22.9)
16.3 (26.2)
18.3 (29.5)
20.4 (32.8)
22.4 (36.1)
36×15
63.9 in (5.10 m)
11.4 (18.4)
13.3 (21.4)
15.2 (24.5)
17.1 (27.5)
19.0 (30.6)
20.9 (33.7)
36×16
59.9 in (4.78 m)
10.7 (17.2)
12.5 (20.1)
14.3 (22.9)
16.0 (25.8)
17.8 (28.7)
19.6 (31.6)
36×17
56.4 in (4.50 m)
10.1 (16.2)
11.7 (18.9)
13.4 (21.6)
15.1 (24.3)
16.8 (27.0)
18.5 (29.7)
36×19
50.5 in (4.03 m)
9.0 (14.5)
10.5 (16.9)
12.0 (19.3)
13.5 (21.7)
15.0 (24.2)
16.5 (26.6)
36×21
45.6 in (3.64 m)
8.1 (13.1)
9.5 (15.3)
10.9 (17.5)
12.2 (19.7)
13.6 (21.9)
14.9 (24.0)
36×24
39.9 in (3.19 m)
7.1 (11.5)
8.3 (13.4)
9.5 (15.3)
10.7 (17.2)
11.9 (19.1)
13.1 (21.0)
36×27
35.5 in (2.83 m)
6.3 (10.2)
7.4 (11.9)
8.4 (13.6)
9.5 (15.3)
10.6 (17.0)
11.6 (18.7)
36×30
32.0 in (2.55 m)
5.7 (9.2)
6.7 (10.7)
7.6 (12.2)
8.6 (13.8)
9.5 (15.3)
10.5 (16.8)
36×34
28.2 in (2.25 m)
5.0 (8.1)
5.9 (9.4)
6.7 (10.8)
7.5 (12.1)
8.4 (13.5)
9.2 (14.8)
48-tooth chainring (SRAM AXS, with a 10-tooth cog)
Gear
Gear inches (development)
60 rpm, mph (km/h)
70 rpm
80 rpm
90 rpm
100 rpm
110 rpm
48×10
127.8 in (10.20 m)
22.8 (36.7)
26.6 (42.8)
30.4 (49.0)
34.2 (55.1)
38.0 (61.2)
41.8 (67.3)
48×11
116.2 in (9.27 m)
20.7 (33.4)
24.2 (38.9)
27.7 (44.5)
31.1 (50.1)
34.6 (55.6)
38.0 (61.2)
48×12
106.5 in (8.50 m)
19.0 (30.6)
22.2 (35.7)
25.3 (40.8)
28.5 (45.9)
31.7 (51.0)
34.9 (56.1)
48×13
98.3 in (7.85 m)
17.5 (28.2)
20.5 (32.9)
23.4 (37.7)
26.3 (42.4)
29.2 (47.1)
32.2 (51.8)
48×14
91.3 in (7.28 m)
16.3 (26.2)
19.0 (30.6)
21.7 (35.0)
24.4 (39.3)
27.2 (43.7)
29.9 (48.1)
48×15
85.2 in (6.80 m)
15.2 (24.5)
17.7 (28.6)
20.3 (32.6)
22.8 (36.7)
25.3 (40.8)
27.9 (44.9)
48×16
79.9 in (6.37 m)
14.3 (22.9)
16.6 (26.8)
19.0 (30.6)
21.4 (34.4)
23.8 (38.2)
26.1 (42.1)
48×17
75.2 in (6.00 m)
13.4 (21.6)
15.7 (25.2)
17.9 (28.8)
20.1 (32.4)
22.4 (36.0)
24.6 (39.6)
48×19
67.3 in (5.37 m)
12.0 (19.3)
14.0 (22.5)
16.0 (25.8)
18.0 (29.0)
20.0 (32.2)
22.0 (35.4)
48×21
60.9 in (4.86 m)
10.9 (17.5)
12.7 (20.4)
14.5 (23.3)
16.3 (26.2)
18.1 (29.1)
19.9 (32.1)
48×24
53.3 in (4.25 m)
9.5 (15.3)
11.1 (17.8)
12.7 (20.4)
14.3 (22.9)
15.8 (25.5)
17.4 (28.0)
48×27
47.3 in (3.78 m)
8.4 (13.6)
9.9 (15.9)
11.3 (18.1)
12.7 (20.4)
14.1 (22.7)
15.5 (24.9)
48×30
42.6 in (3.40 m)
7.6 (12.2)
8.9 (14.3)
10.1 (16.3)
11.4 (18.4)
12.7 (20.4)
13.9 (22.4)
48×34
37.6 in (3.00 m)
6.7 (10.8)
7.8 (12.6)
8.9 (14.4)
10.1 (16.2)
11.2 (18.0)
12.3 (19.8)
Gravel: 40-tooth chainring with a 10-44 cassette
Gear
Gear inches (development)
60 rpm, mph (km/h)
70 rpm
80 rpm
90 rpm
100 rpm
110 rpm
40×10
110.2 in (8.79 m)
19.7 (31.6)
22.9 (36.9)
26.2 (42.2)
29.5 (47.5)
32.8 (52.7)
36.1 (58.0)
40×11
100.2 in (7.99 m)
17.9 (28.8)
20.9 (33.6)
23.8 (38.4)
26.8 (43.2)
29.8 (48.0)
32.8 (52.7)
40×13
84.7 in (6.76 m)
15.1 (24.3)
17.6 (28.4)
20.2 (32.5)
22.7 (36.5)
25.2 (40.6)
27.7 (44.6)
40×15
73.4 in (5.86 m)
13.1 (21.1)
15.3 (24.6)
17.5 (28.1)
19.7 (31.6)
21.9 (35.2)
24.0 (38.7)
40×17
64.8 in (5.17 m)
11.6 (18.6)
13.5 (21.7)
15.4 (24.8)
17.4 (27.9)
19.3 (31.0)
21.2 (34.1)
40×19
58.0 in (4.63 m)
10.4 (16.7)
12.1 (19.4)
13.8 (22.2)
15.5 (25.0)
17.3 (27.8)
19.0 (30.5)
40×21
52.5 in (4.19 m)
9.4 (15.1)
10.9 (17.6)
12.5 (20.1)
14.0 (22.6)
15.6 (25.1)
17.2 (27.6)
40×24
45.9 in (3.66 m)
8.2 (13.2)
9.6 (15.4)
10.9 (17.6)
12.3 (19.8)
13.7 (22.0)
15.0 (24.2)
40×28
39.3 in (3.14 m)
7.0 (11.3)
8.2 (13.2)
9.4 (15.1)
10.5 (17.0)
11.7 (18.8)
12.9 (20.7)
40×32
34.4 in (2.75 m)
6.1 (9.9)
7.2 (11.5)
8.2 (13.2)
9.2 (14.8)
10.2 (16.5)
11.3 (18.1)
40×38
29.0 in (2.31 m)
5.2 (8.3)
6.0 (9.7)
6.9 (11.1)
7.8 (12.5)
8.6 (13.9)
9.5 (15.3)
40×44
25.0 in (2.00 m)
4.5 (7.2)
5.2 (8.4)
6.0 (9.6)
6.7 (10.8)
7.4 (12.0)
8.2 (13.2)
Mountain bike: 32-tooth chainring with a 10-52 cassette
Gear
Gear inches (development)
60 rpm, mph (km/h)
70 rpm
80 rpm
90 rpm
100 rpm
110 rpm
32×10
93.3 in (7.44 m)
16.6 (26.8)
19.4 (31.3)
22.2 (35.7)
25.0 (40.2)
27.7 (44.7)
30.5 (49.1)
32×12
77.7 in (6.20 m)
13.9 (22.3)
16.2 (26.0)
18.5 (29.8)
20.8 (33.5)
23.1 (37.2)
25.4 (40.9)
32×14
66.6 in (5.32 m)
11.9 (19.1)
13.9 (22.3)
15.9 (25.5)
17.8 (28.7)
19.8 (31.9)
21.8 (35.1)
32×16
58.3 in (4.65 m)
10.4 (16.7)
12.1 (19.5)
13.9 (22.3)
15.6 (25.1)
17.3 (27.9)
19.1 (30.7)
32×18
51.8 in (4.13 m)
9.2 (14.9)
10.8 (17.4)
12.3 (19.8)
13.9 (22.3)
15.4 (24.8)
17.0 (27.3)
32×21
44.4 in (3.54 m)
7.9 (12.8)
9.2 (14.9)
10.6 (17.0)
11.9 (19.1)
13.2 (21.3)
14.5 (23.4)
32×24
38.9 in (3.10 m)
6.9 (11.2)
8.1 (13.0)
9.2 (14.9)
10.4 (16.7)
11.6 (18.6)
12.7 (20.5)
32×28
33.3 in (2.66 m)
5.9 (9.6)
6.9 (11.2)
7.9 (12.8)
8.9 (14.4)
9.9 (15.9)
10.9 (17.5)
32×32
29.1 in (2.33 m)
5.2 (8.4)
6.1 (9.8)
6.9 (11.2)
7.8 (12.6)
8.7 (14.0)
9.5 (15.4)
32×38
24.5 in (1.96 m)
4.4 (7.1)
5.1 (8.2)
5.8 (9.4)
6.6 (10.6)
7.3 (11.8)
8.0 (12.9)
32×44
21.2 in (1.69 m)
3.8 (6.1)
4.4 (7.1)
5.0 (8.1)
5.7 (9.1)
6.3 (10.1)
6.9 (11.2)
32×52
17.9 in (1.43 m)
3.2 (5.2)
3.7 (6.0)
4.3 (6.9)
4.8 (7.7)
5.3 (8.6)
5.9 (9.4)
How to read the chart
Which cadence to look at. Lucía, Hoyos and Chicharro measured pro riders at the Giro, Tour and Vuelta: about 89 rpm on flat stages, 92 in time trials and 71 on climbs. For everyday riding, the 80 or 90 rpm column is yours; for climbing, the 60 or 70.
Cross-chaining. The road charts list every cog with each chainring so you don’t miss a row, but the big ring with the two biggest cogs, or the small ring with the two smallest, runs the chain at a steep angle. Use the matching gear on the other ring.
Different tires. On 25 mm tires speeds are about 1% lower than on 28 mm; on 32 mm, about 1% higher. On a 27.5 in mountain bike they’re about 5% lower than in the 29 in chart.
A different chainring. Speed is proportional to chainring teeth: with a 53 instead of a 50, multiply the 50 chart by 1.06. For a 39, 35 or anything else, use the calculator, which builds the full chart at your cadence.
If what you’re after is the distance per pedal stroke for your drivetrain, it’s all in one place in the gear development chart. And to see what speed your watts give you on the flat or on a climb, try the power and speed calculator. The gearing guide explains how to choose chainrings and a cassette, and the one on gearing for climbing covers the low gear you need to stay above 70 rpm on a climb.
Frequently asked questions
How fast do I go in a 50×11 at 90 rpm?
32.4 mph (52.2 km/h) on 28 mm tires. At 100 rpm it's 36.0 mph (57.9 km/h) and at 110 rpm, 39.6 mph (63.7 km/h), the top pedaling speed of a compact crankset.
What is a normal cycling cadence?
On flat roads, pros ride at around 90 rpm and drop to about 70 on long climbs, according to measurements by Lucía and his team at the Giro, Tour and Vuelta. For most riders, 80 to 95 rpm on the flat feels comfortable.
How do I work out speed without the chart?
Multiply gear inches by cadence and by 0.002975 to get mph, or the development in meters by cadence and by 0.06 to get km/h. With a 50×17 (78.3 in, 6.25 m) at 85 rpm: 78.3 × 85 × 0.002975 = 19.8 mph, or 6.25 × 85 × 0.06 = 31.9 km/h.
