Size

Pieces / kg

Weight of 1000
balls in kg.

Size

Pieces / kg

Weight of 1000
balls in kg.

Inch

mm

Inch

mm

1.500

72124

0.015

3/4″

19.05

35.00

28.571

1/16″

1.5875

60843

0.016

25/32″

19.844

31.00

32.258

5/64″

1.9844

31500

0.032

20.000

30.50

32.787

2.000

30427

0.033

13/16″

20.638

28.00

35.714

3/32″

2.381

18058

0.055

21.000

26.00

38.462

2.500

15612

0.064

27/32″

21.431

25.00

40.000

7/64″

2.778

11478

0.087

22.000

23.00

43.478

3.000

9035

0.111

7/8″

22.225

22.00

45.455

1/8″

3.175

7622

0.131

23.000

20.00

50.000

3.500

5689

0.176

29/32″

23.019

20.00

50.000

5/32″

3.969

3902

0.256

15/16″

23.813

18.00

55.556

4.000

3811

0.262

24.000

17.64

56.689

4.500

2677

0.374

31/32″

24.606

16.37

61.087

3/16″

4.763

2258

0.443

25.000

15.61

64.061

5.000

1951

0.513

1″

25.400

14.88

67.204

7/32″

5.556

1422

0.703

26.000

13.88

72.046

15/64″

5.953

1155

0.866

1 – 1/16″

26.988

12.41

80.580

6.000

1129

0.886

28.000

11.11

90.009

1/4″

6.350

953

1.049

1 – 1/8″

28.575

10.45

95.694

17/64″

6.747

794

1.259

30.000

9.03

110.742

7.000

711

1.406

1 – 3/16″

30.163

8.89

112.486

9/32″

7.144

669

1.495

1 – 1/4″

31.750

7.62

131.234

5/16″

7.938

487

2.053

32.000

7.44

134.409

8.000

476

2.101

1 – 5/16″

33.338

6.58

151.976

11/32″

8.731

366

2.732

34.000

6.20

161.29

9.000

334

2.994

1 – 3/8″

34.925

5.72

174.825

3/8″

9.525

282

3.546

35.000

5.68

176.056

10.000

243

4.115

36.000

5.22

191.571

13/32″

10.319

222

4.505

1 – 7/16″

36.513

5.01

199.601

11.000

183

5.464

38.000

4.44

225.225

7/16″

11.113

177

5.650

1 – 1/2″

38.100

4.41

226.757

29/64″

11.509

160

6.250

1.9/16″

39.688

3.900

256.410

15/32″

11.906

144

6.944

40.000

3.810

262.467

12.000

141

7.092

1.5/8″

41.275

3.470

288.184

31/64″

12.303

131

7.634

1.11/16″

42.863

3.100

322.581

1/2″

12.700

119

8.403

1.3/4″

44.450

2.780

359.712

13.000

111

9.072

45.000

2.680

373.134

17/32″

13.494

99

10.101

1.13/16″

46.038

2.500

400.000

14.000

89

11.236

1.7/8″

47.625

2.260

442.478

9/16″

14.288

84

11.905

1.15/16″

49.212

2.060

485.437

15.000

72.00

13.889

50.000

1.950

512.821

19/32″

15.081

71

14.085

2″

50.800

1.860

537.634

5/8″

15.875

61

16.393

2.1/8″

53.975

1.550

645.161

16.000

60.00

16.667

55.000

1.470

680.272

21/32″

16.669

53

18.868

2.1/4″

57.150

1.310

763.359

17.000

50.00

20.000

60.000

1.130

884.956

11/16″

17.463

46.00

21.739

2.3/8″

60.325

1.120

892.857

18.000

42.00

23.809

2.1/2″

63.500

0.950

1,052.632

23/32″

18.256

40.00

25.000

The weight specified above is based on the SAE 52100 steel balls.1Kg = 2.205 lbs (USA)
The multiplying factor for obtaining the approximate weight of 1000 balls, in Kgs; for other materials is as given below.

 

Material

Multiplying Factor

Carbon Steel

1.004

Stainless Steel AISI 302 / 304

1.011

Stainless Steel AISI 316

1.025

Stainless Steel AISI 420 / 440

0.979

Brass

1.074