Endura

Incline Dumbbell Curls vs Dumbbell Spider Curl Strength Standards

Compare your incline dumbbell curls and dumbbell spider curl against strength standards for your sex and bodyweight. Enter one recent set of 1–12 reps for each lift to see your estimated one-rep maxes, strength levels, next targets, and which lift you should prioritize.

Use each exercise's canonical input: Weight of one dumbbell for Incline Dumbbell Curls and Weight used for Dumbbell Spider Curl. Use a bilateral matching-dumbbell incline curl with bench support, full controlled lengthened bottom, clear top curl, stable wrists, and no torso lift-off and the entered weight for strict Dumbbell Spider Curl. You can enter either lift in pounds or kilograms. Each lift is compared with its own standards, so the heavier lift is not automatically the stronger one.

Incline Dumbbell Curls vs Dumbbell Spider Curl Strength Standards by Bodyweight

Use these tables to compare the estimated one-rep max required for the incline dumbbell curls and dumbbell spider curl to reach the same strength level at each listed bodyweight. They show the targets used by the calculator—not a required difference between your incline dumbbell curls and dumbbell spider curl.

Choose the men’s or women’s table, find your bodyweight or the closest listed row, then read across to Novice, Intermediate, Advanced, or Elite. Every entry shows Incline Dumbbell Curls / Dumbbell Spider Curl, with pounds first and kilograms underneath. For a result based on your exact bodyweight and recent sets, use the calculator above; you do not need to test either true one-rep max.

Men’s Incline Dumbbell Curls vs Dumbbell Spider Curl Standards

How to read the table: The first number is Incline Dumbbell Curls; the second is Dumbbell Spider Curl. Each number is the lowest estimated one-rep max needed to reach that strength level. Scroll horizontally on smaller screens.

BodyweightNoviceIntermediateAdvancedElite
120 lb
54.4 kg
17 / 25 lb
7.7 / 11.3 kg
29 / 39 lb
13.2 / 17.7 kg
43 / 56 lb
19.5 / 25.4 kg
60 / 76 lb
27.2 / 34.5 kg
130 lb
59 kg
18 / 26 lb
8.2 / 11.8 kg
31 / 41 lb
14.1 / 18.6 kg
46 / 59 lb
20.9 / 26.8 kg
64 / 80 lb
29 / 36.3 kg
140 lb
63.5 kg
19 / 28 lb
8.6 / 12.7 kg
33 / 43 lb
15 / 19.5 kg
48 / 62 lb
21.8 / 28.1 kg
67 / 84 lb
30.4 / 38.1 kg
150 lb
68 kg
20 / 29 lb
9.1 / 13.2 kg
34 / 45 lb
15.4 / 20.4 kg
50 / 65 lb
22.7 / 29.5 kg
70 / 88 lb
31.8 / 39.9 kg
160 lb
72.6 kg
21 / 30 lb
9.5 / 13.6 kg
36 / 47 lb
16.3 / 21.3 kg
53 / 68 lb
24 / 30.8 kg
73 / 92 lb
33.1 / 41.7 kg
170 lb
77.1 kg
21 / 32 lb
9.5 / 14.5 kg
37 / 49 lb
16.8 / 22.2 kg
55 / 71 lb
24.9 / 32.2 kg
76 / 96 lb
34.5 / 43.5 kg
180 lb
81.6 kg
22 / 33 lb
10 / 15 kg
39 / 51 lb
17.7 / 23.1 kg
57 / 73 lb
25.9 / 33.1 kg
79 / 99 lb
35.8 / 44.9 kg
190 lb
86.2 kg
23 / 34 lb
10.4 / 15.4 kg
40 / 53 lb
18.1 / 24 kg
59 / 76 lb
26.8 / 34.5 kg
82 / 103 lb
37.2 / 46.7 kg
200 lb
90.7 kg
24 / 35 lb
10.9 / 15.9 kg
41 / 55 lb
18.6 / 24.9 kg
61 / 79 lb
27.7 / 35.8 kg
85 / 107 lb
38.6 / 48.5 kg
210 lb
95.3 kg
25 / 36 lb
11.3 / 16.3 kg
43 / 57 lb
19.5 / 25.9 kg
63 / 81 lb
28.6 / 36.7 kg
88 / 110 lb
39.9 / 49.9 kg
220 lb
99.8 kg
25 / 37 lb
11.3 / 16.8 kg
44 / 58 lb
20 / 26.3 kg
65 / 84 lb
29.5 / 38.1 kg
90 / 114 lb
40.8 / 51.7 kg
230 lb
104.3 kg
26 / 39 lb
11.8 / 17.7 kg
45 / 60 lb
20.4 / 27.2 kg
67 / 86 lb
30.4 / 39 kg
93 / 117 lb
42.2 / 53.1 kg
240 lb
108.9 kg
27 / 40 lb
12.2 / 18.1 kg
47 / 62 lb
21.3 / 28.1 kg
69 / 89 lb
31.3 / 40.4 kg
96 / 120 lb
43.5 / 54.4 kg
250 lb
113.4 kg
28 / 41 lb
12.7 / 18.6 kg
48 / 64 lb
21.8 / 29 kg
71 / 91 lb
32.2 / 41.3 kg
98 / 124 lb
44.5 / 56.2 kg
260 lb
117.9 kg
28 / 42 lb
12.7 / 19.1 kg
49 / 65 lb
22.2 / 29.5 kg
73 / 94 lb
33.1 / 42.6 kg
101 / 127 lb
45.8 / 57.6 kg
270 lb
122.5 kg
29 / 43 lb
13.2 / 19.5 kg
51 / 67 lb
23.1 / 30.4 kg
75 / 96 lb
34 / 43.5 kg
104 / 130 lb
47.2 / 59 kg
280 lb
127 kg
30 / 44 lb
13.6 / 20 kg
52 / 69 lb
23.6 / 31.3 kg
76 / 98 lb
34.5 / 44.5 kg
106 / 133 lb
48.1 / 60.3 kg
290 lb
131.5 kg
30 / 45 lb
13.6 / 20.4 kg
53 / 70 lb
24 / 31.8 kg
78 / 101 lb
35.4 / 45.8 kg
109 / 137 lb
49.4 / 62.1 kg
300 lb
136.1 kg
31 / 46 lb
14.1 / 20.9 kg
54 / 72 lb
24.5 / 32.7 kg
80 / 103 lb
36.3 / 46.7 kg
111 / 140 lb
50.3 / 63.5 kg

Women’s Incline Dumbbell Curls vs Dumbbell Spider Curl Standards

How to read the table: The first number is Incline Dumbbell Curls; the second is Dumbbell Spider Curl. Each number is the lowest estimated one-rep max needed to reach that strength level. Scroll horizontally on smaller screens.

BodyweightNoviceIntermediateAdvancedElite
100 lb
45.4 kg
10 / 11 lb
4.5 / 5 kg
18 / 21 lb
8.2 / 9.5 kg
27 / 32 lb
12.2 / 14.5 kg
38 / 43 lb
17.2 / 19.5 kg
110 lb
49.9 kg
11 / 12 lb
5 / 5.4 kg
19 / 22 lb
8.6 / 10 kg
28 / 34 lb
12.7 / 15.4 kg
41 / 46 lb
18.6 / 20.9 kg
120 lb
54.4 kg
11 / 13 lb
5 / 5.9 kg
20 / 23 lb
9.1 / 10.4 kg
30 / 36 lb
13.6 / 16.3 kg
43 / 49 lb
19.5 / 22.2 kg
130 lb
59 kg
12 / 14 lb
5.4 / 6.4 kg
21 / 25 lb
9.5 / 11.3 kg
32 / 38 lb
14.5 / 17.2 kg
45 / 52 lb
20.4 / 23.6 kg
140 lb
63.5 kg
12 / 14 lb
5.4 / 6.4 kg
22 / 26 lb
10 / 11.8 kg
33 / 40 lb
15 / 18.1 kg
48 / 54 lb
21.8 / 24.5 kg
150 lb
68 kg
13 / 15 lb
5.9 / 6.8 kg
23 / 27 lb
10.4 / 12.2 kg
35 / 42 lb
15.9 / 19.1 kg
50 / 57 lb
22.7 / 25.9 kg
160 lb
72.6 kg
14 / 16 lb
6.4 / 7.3 kg
24 / 28 lb
10.9 / 12.7 kg
37 / 44 lb
16.8 / 20 kg
52 / 60 lb
23.6 / 27.2 kg
170 lb
77.1 kg
14 / 16 lb
6.4 / 7.3 kg
25 / 29 lb
11.3 / 13.2 kg
38 / 46 lb
17.2 / 20.9 kg
54 / 62 lb
24.5 / 28.1 kg
180 lb
81.6 kg
15 / 17 lb
6.8 / 7.7 kg
26 / 30 lb
11.8 / 13.6 kg
40 / 47 lb
18.1 / 21.3 kg
56 / 64 lb
25.4 / 29 kg
190 lb
86.2 kg
15 / 18 lb
6.8 / 8.2 kg
27 / 32 lb
12.2 / 14.5 kg
41 / 49 lb
18.6 / 22.2 kg
59 / 67 lb
26.8 / 30.4 kg
200 lb
90.7 kg
16 / 18 lb
7.3 / 8.2 kg
28 / 33 lb
12.7 / 15 kg
42 / 51 lb
19.1 / 23.1 kg
61 / 69 lb
27.7 / 31.3 kg
210 lb
95.3 kg
16 / 19 lb
7.3 / 8.6 kg
29 / 34 lb
13.2 / 15.4 kg
44 / 53 lb
20 / 24 kg
63 / 71 lb
28.6 / 32.2 kg
220 lb
99.8 kg
17 / 19 lb
7.7 / 8.6 kg
30 / 35 lb
13.6 / 15.9 kg
45 / 54 lb
20.4 / 24.5 kg
65 / 74 lb
29.5 / 33.6 kg
230 lb
104.3 kg
17 / 20 lb
7.7 / 9.1 kg
31 / 36 lb
14.1 / 16.3 kg
47 / 56 lb
21.3 / 25.4 kg
66 / 76 lb
29.9 / 34.5 kg
240 lb
108.9 kg
18 / 21 lb
8.2 / 9.5 kg
31 / 37 lb
14.1 / 16.8 kg
48 / 57 lb
21.8 / 25.9 kg
68 / 78 lb
30.8 / 35.4 kg

How Your Incline Dumbbell Curls vs Dumbbell Spider Curl Result Is Calculated

The calculator estimates each max, rates it against the standards for that exercise and bodyweight, then compares the two ratings. Here is the complete process.

1. Estimate a one-rep max from each set

For one rep, it uses the weight entered. For 2–12 reps, it runs both formulas and keeps the lower, less aggressive estimate.

  • Epley: weight × (1 + reps ÷ 30)
  • Brzycki: weight × 36 ÷ (37 − reps)

A published back-squat study supports estimated-max prediction under its study conditions. It does not independently validate every exercise or population used by this comparison. Estimates are more dependable from clean, difficult, lower-rep sets. See the Back-squat formula validation study and Published discussion of back-squat one-rep-max prediction research.

2. Find the incline dumbbell curls strength level

The standards use the sex-specific one-dumbbell incline curl thresholds from the individual tool. Targets begin at 190 lb for men and 150 lb for women, then adjust to your exact bodyweight: reference target × (user bodyweight ÷ reference bodyweight) to the two-thirds power.

The target rises more slowly than bodyweight so larger lifters are expected to curl more per dumbbell without requiring strength to increase pound for pound.

3. Find the dumbbell spider curl strength level

The standards use the sex-specific thresholds from the individual Dumbbell Spider Curl tool. Targets begin at 190 lb for men and 150 lb for women, then adjust to your exact bodyweight: reference target × (user bodyweight ÷ reference bodyweight) to the two-thirds power.

The target rises more slowly than bodyweight so larger lifters are expected to lift more without requiring strength to increase pound for pound.

4. Compare the two results

Each max receives a level from Beginner through Elite. The lower-level lift is the priority. If the levels match, a priority appears only when one lift is at least 10 points farther from its next level. Otherwise, the result is Balanced.

The result shows which lift ranks lower, not why. Technique, fatigue, training history, and set quality can affect it. Age range is recorded anonymously but does not change the standards.

StageWhat happens
Estimate each maxUse the entered weight for 1 rep; for 2–12 reps, keep the lower formula result.
Rate the incline dumbbell curlUse one-dumbbell estimated max and adjust targets to exact bodyweight with the two-thirds rule.
Rate the dumbbell spider curlUse the canonical estimated max and adjust targets to exact bodyweight with the approved two-thirds rule.
Compare different levelsName the lower-level lift as the priority.
Compare matching levelsUse Balanced unless the difference in progress toward the next level reaches 10 points.

Use the calculator above to see both estimated maxes, strength levels, the priority or Balanced result, and both next-level targets.

How Men’s Incline Dumbbell Curls and Dumbbell Spider Curl Standards Differ

How to read both charts: Choose a strength level, find bodyweight along the bottom, and follow that level’s line. Zero means the two standards are equal. Above zero means the dumbbell spider curl standard is higher; below zero means the incline dumbbell curls standard is higher. On a phone, swipe the chart left and right to inspect the full-size lines and labels. The tables provide the exact pounds and kilograms.

What the men’s data shows:

Novice closest match120 lb

The standards come closest at 120 lb.

Dumbbell Spider Curl target is higher4 strength levels

Novice, Intermediate, Advanced, and Elite at every displayed bodyweight.

Elite difference16 → 29 lb

7.3 → 13.2 kg from 120 to 300 lb bodyweight.

How men’s incline dumbbell curls and dumbbell spider curl standards differ by bodyweightFour colored lines show the difference in pounds between the dumbbell spider curl and incline dumbbell curls standards at Novice, Intermediate, Advanced, and Elite. Zero means the two standards are equal. Above zero means the dumbbell spider curl standard is higher. Below zero means the incline dumbbell curls standard is higher.NoviceIntermediateAdvancedElite0+10+20+30120140160180200220240260280300Bodyweight (lb)Difference between standards (lb)

How to read the table: Every number is the dumbbell spider curl standard minus the incline dumbbell curls standard. A plus sign means the dumbbell spider curl standard is higher. A minus sign means the incline dumbbell curls standard is higher.

BodyweightNoviceIntermediateAdvancedElite
120 lb
54.4 kg
+8 lb
+3.6 kg
+10 lb
+4.5 kg
+13 lb
+5.9 kg
+16 lb
+7.3 kg
130 lb
59 kg
+8 lb
+3.6 kg
+10 lb
+4.5 kg
+13 lb
+5.9 kg
+16 lb
+7.3 kg
140 lb
63.5 kg
+9 lb
+4.1 kg
+10 lb
+4.5 kg
+14 lb
+6.3 kg
+17 lb
+7.7 kg
150 lb
68 kg
+9 lb
+4.1 kg
+11 lb
+5 kg
+15 lb
+6.8 kg
+18 lb
+8.1 kg
160 lb
72.6 kg
+9 lb
+4.1 kg
+11 lb
+5 kg
+15 lb
+6.8 kg
+19 lb
+8.6 kg
170 lb
77.1 kg
+11 lb
+5 kg
+12 lb
+5.4 kg
+16 lb
+7.3 kg
+20 lb
+9 kg
180 lb
81.6 kg
+11 lb
+5 kg
+12 lb
+5.4 kg
+16 lb
+7.2 kg
+20 lb
+9.1 kg
190 lb
86.2 kg
+11 lb
+5 kg
+13 lb
+5.9 kg
+17 lb
+7.7 kg
+21 lb
+9.5 kg
200 lb
90.7 kg
+11 lb
+5 kg
+14 lb
+6.3 kg
+18 lb
+8.1 kg
+22 lb
+9.9 kg
210 lb
95.3 kg
+11 lb
+5 kg
+14 lb
+6.4 kg
+18 lb
+8.1 kg
+22 lb
+10 kg
220 lb
99.8 kg
+12 lb
+5.5 kg
+14 lb
+6.3 kg
+19 lb
+8.6 kg
+24 lb
+10.9 kg
230 lb
104.3 kg
+13 lb
+5.9 kg
+15 lb
+6.8 kg
+19 lb
+8.6 kg
+24 lb
+10.9 kg
240 lb
108.9 kg
+13 lb
+5.9 kg
+15 lb
+6.8 kg
+20 lb
+9.1 kg
+24 lb
+10.9 kg
250 lb
113.4 kg
+13 lb
+5.9 kg
+16 lb
+7.2 kg
+20 lb
+9.1 kg
+26 lb
+11.7 kg
260 lb
117.9 kg
+14 lb
+6.4 kg
+16 lb
+7.3 kg
+21 lb
+9.5 kg
+26 lb
+11.8 kg
270 lb
122.5 kg
+14 lb
+6.3 kg
+16 lb
+7.3 kg
+21 lb
+9.5 kg
+26 lb
+11.8 kg
280 lb
127 kg
+14 lb
+6.4 kg
+17 lb
+7.7 kg
+22 lb
+10 kg
+27 lb
+12.2 kg
290 lb
131.5 kg
+15 lb
+6.8 kg
+17 lb
+7.8 kg
+23 lb
+10.4 kg
+28 lb
+12.7 kg
300 lb
136.1 kg
+15 lb
+6.8 kg
+18 lb
+8.2 kg
+23 lb
+10.4 kg
+29 lb
+13.2 kg

How Women’s Incline Dumbbell Curls and Dumbbell Spider Curl Standards Differ

What the women’s data shows:

Novice closest match100 lb, 110 lb, 120 lb, 130 lb, 140 lb, 150 lb, 160 lb, 170 lb, 180 lb, 190 lb, 200 lb, 210 lb, 220 lb, 230 lb, and 240 lb

The incline dumbbell curls and dumbbell spider curl standards are within 3 lb at 100 lb, 110 lb, 120 lb, 130 lb, 140 lb, 150 lb, 160 lb, 170 lb, 180 lb, 190 lb, 200 lb, 210 lb, 220 lb, 230 lb, and 240 lb.

Dumbbell Spider Curl target is higher4 strength levels

Novice, Intermediate, Advanced, and Elite at every displayed bodyweight.

Elite difference5 → 10 lb

2.3 → 4.6 kg from 100 to 240 lb bodyweight.

How women’s incline dumbbell curls and dumbbell spider curl standards differ by bodyweightFour colored lines show the difference in pounds between the dumbbell spider curl and incline dumbbell curls standards at Novice, Intermediate, Advanced, and Elite. Zero means the two standards are equal. Above zero means the dumbbell spider curl standard is higher. Below zero means the incline dumbbell curls standard is higher.NoviceIntermediateAdvancedElite0+2+4+6+8+10100120140160180200220240Bodyweight (lb)Difference between standards (lb)

How to read the table: Every number is the dumbbell spider curl standard minus the incline dumbbell curls standard. A plus sign means the dumbbell spider curl standard is higher. A minus sign means the incline dumbbell curls standard is higher.

BodyweightNoviceIntermediateAdvancedElite
100 lb
45.4 kg
+1 lb
+0.5 kg
+3 lb
+1.3 kg
+5 lb
+2.3 kg
+5 lb
+2.3 kg
110 lb
49.9 kg
+1 lb
+0.4 kg
+3 lb
+1.4 kg
+6 lb
+2.7 kg
+5 lb
+2.3 kg
120 lb
54.4 kg
+2 lb
+0.9 kg
+3 lb
+1.3 kg
+6 lb
+2.7 kg
+6 lb
+2.7 kg
130 lb
59 kg
+2 lb
+1 kg
+4 lb
+1.8 kg
+6 lb
+2.7 kg
+7 lb
+3.2 kg
140 lb
63.5 kg
+2 lb
+1 kg
+4 lb
+1.8 kg
+7 lb
+3.1 kg
+6 lb
+2.7 kg
150 lb
68 kg
+2 lb
+0.9 kg
+4 lb
+1.8 kg
+7 lb
+3.2 kg
+7 lb
+3.2 kg
160 lb
72.6 kg
+2 lb
+0.9 kg
+4 lb
+1.8 kg
+7 lb
+3.2 kg
+8 lb
+3.6 kg
170 lb
77.1 kg
+2 lb
+0.9 kg
+4 lb
+1.9 kg
+8 lb
+3.7 kg
+8 lb
+3.6 kg
180 lb
81.6 kg
+2 lb
+0.9 kg
+4 lb
+1.8 kg
+7 lb
+3.2 kg
+8 lb
+3.6 kg
190 lb
86.2 kg
+3 lb
+1.4 kg
+5 lb
+2.3 kg
+8 lb
+3.6 kg
+8 lb
+3.6 kg
200 lb
90.7 kg
+2 lb
+0.9 kg
+5 lb
+2.3 kg
+9 lb
+4 kg
+8 lb
+3.6 kg
210 lb
95.3 kg
+3 lb
+1.3 kg
+5 lb
+2.2 kg
+9 lb
+4 kg
+8 lb
+3.6 kg
220 lb
99.8 kg
+2 lb
+0.9 kg
+5 lb
+2.3 kg
+9 lb
+4.1 kg
+9 lb
+4.1 kg
230 lb
104.3 kg
+3 lb
+1.4 kg
+5 lb
+2.2 kg
+9 lb
+4.1 kg
+10 lb
+4.6 kg
240 lb
108.9 kg
+3 lb
+1.3 kg
+6 lb
+2.7 kg
+9 lb
+4.1 kg
+10 lb
+4.6 kg

Incline Dumbbell Curls and Dumbbell Spider Curl Exercises Used by This Calculator

This calculator uses a strict bilateral incline dumbbell curl and a strict dumbbell spider curl test. Use strict canonical Incline Dumbbell Curls and Dumbbell Spider Curl tests. Do not mix variations, assistance, partial range, momentum, or different load conventions.

Enter one dumbbell and keep the torso on the incline bench

Enter the weight of one dumbbell, not the combined pair. Use two matched dumbbells, keep the torso supported and palms supinated, curl to a clear top, and return to the full lengthened bottom under control. Do not enter combined pair weight, standing or hammer curls, alternating rest-pause sets, shortened-bottom reps, shoulder-heave reps, or torso-lift reps.

Use the canonical Dumbbell Spider Curl setup and load convention

the entered weight for strict Dumbbell Spider Curl valid Dumbbell Spider Curl reps curl the dumbbells by arm bend to a clear top position, then lower to near-full elbow extension without shoulder swing or pad bounce and finish with controlled top curl and controlled return to the bottom range with trunk support maintained Consistent setup, range, and finish quality across the entered set No substituted exercise or assisted reps

Enter one recent Incline Dumbbell Curls result and one recent Dumbbell Spider Curl result

Use each exercise’s canonical input: Weight of one dumbbell for Incline Dumbbell Curls and Weight used for Dumbbell Spider Curl.

  • Incline Dumbbell Curls — View the individual Incline Dumbbell Curls standards and next strength-level target.
  • Dumbbell Spider Curl — View the individual Dumbbell Spider Curl standards and next strength-level target.
  • Dumbbell Curls — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
  • Dumbbell Hammer Curl — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
  • Barbell Curl (Strict) — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
  • Reverse Barbell Curl — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
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