PENNYWEIGHT TO GRAM CONVERSION CHART

WHAT ARE PENNYWEIGHTS AND WHY ARE THEY USED VERSUS GRAM WEIGHT?

Pennyweight to Grams Conversion Chart

Lots of Confusion comes with Pennyweights!

Why do we use them, and what are they used for?

Pennyweights are often used by Jewelers and Dentists to Weigh and Evaluate Measurements of Precious Metals like Gold, Silver and Platinum.

“Oh, it’s the Denarius!”

Pennyweights were given the name Pennyweight after the British Penny! It is abbreviated dwt for the Roman word “Denarius” which meant coin before the British System began. (Some Jewelers still list it as pwt or pw though.)

A British Penny (1 dwt) weighs exactly 1/240 Troy Pound of Silver. That’s equal to 24 Grains or .055 Ounces. So it’s the perfect Penny Weight! (A U.S. Penny for Comparison Weighs 2.5 grams, or 1.607 dwt!)

Why Jewelers still use this Metric System is beyond me though. We don’t use anything else Metric! A Jeweler’s response to this would probably be “Because that’s how it’s always been!

It only creates Confusion!

I believe it only Creates Confusion with Customers. For example: 20 Pennyweight (abbreviated dwt for the Roman word “Denarius” which meant coin before the British System began) is equal to $460 right now… But 32 Grams is also equal to $460! Both are the same thing, but it sounds like you’re getting a much better deal with 20 Pennyweight, doesn’t it? Or is that just me?

No matter what, it makes people scratch their heads. And I’m sure most people just think that dwt is some sort of code for “Gram“. They don’t know the difference.

But here’s the funny thing…

Jewelers only use Pennyweight when they are evaluating Gold or giving you Appraisal Values on your merchandise. They never sell Jewelry this way! Can you imagine buying a Gold Chain by the Pennyweight versus Grams?

Nope! That doesn’t make sense.

Most people will need to know either Gram Weight or Pennyweight when they are Selling their Gold. That’s where this Conversion Chart comes in handy. It helps you compare quotes! (Because some quote by Grams, some by Pennyweight, and Appraisals often list one or both of the numbers. You just never know!)

Do note that values on Gold and other precious metals can change drastically from day to day. It all depends on the market. As of this writing (12/26/2009), Gold was $1105.20 an ounce. (As listed on Kitco.com) (Another website widely used for obtaining the going rate of metals is Monex.com) Both are highly respected and recommended in the Jewelry Industry! (They show you how much Gold is worth!)

Gold Prices Fluctuate!

Since Gold Prices fluctuates greatly, you will have to be careful when selling. Check around. Get live up-to-date quotes and prices first! A quick check online today with different websites had buying prices all over the board. Places were buying 14kt Gold anywhere from $11 all the way up to $27 per dwt. Wow! Big difference!

Also note that if you’re using this Conversion Chart to get Gram Weights or Pennyweights, make sure you separate your metals into different piles first before you weight them. 14kt Gold in one pile. 10kt Gold in another. Silver in the next. And so on. This way the metals don’t get mixed up and they are sold by their proper market values.

So let’s get to it! Pennyweight to Grams and Grams to Pennyweights! Here’s your Conversion Chart! Enjoy!

Pennyweight Gram Conversion Chart

GRAMS PWT GRAMS PWT
1 0.643 500 321.507
2 1.286 501 322.150
3 1.929 502 322.793
4 2.572 503 323.436
5 3.215 504 324.079
6 3.858 505 324.722
7 4.501 506 325.365
8 5.144 507 326.008
9 5.787 508 326.651
10 6.430 509 327.294
11 7.073 510 327.937
12 7.716 511 328.580
13 8.359 512 329.223
14 9.002 513 329.866
15 9.645 514 330.509
16 10.288 515 331.152
17 10.931 516 331.795
18 11.574 517 332.438
19 12.217 518 333.081
20 12.860 519 333.724
21 13.503 520 334.367
22 14.146 521 335.010
23 14.789 522 335.653
24 15.432 523 336.296
25 16.075 524 336.939
26 16.718 525 337.582
27 17.361 526 338.225
28 18.004 527 338.868
29 18.647 528 339.511
30 19.290 529 340.154
31 19.933 530 340.797
32 20.576 531 341.440
33 21.219 532 342.083
34 21.862 533 342.726
35 22.505 534 343.369
36 23.148 535 344.012
37 23.791 536 344.655
38 24.434 537 345.298
39 25.077 538 345.941
40 25.720 539 346.585
41 26.363 540 347.228
42 27.006 541 347.871
43 27.649 542 348.514
44 28.292 543 349.157
45 28.935 544 349.800
46 29.578 545 350.443
47 30.221 546 351.086
48 30.864 547 351.729
49 31.507 548 352.372
50 32.150 549 353.015
GRAMS PWT GRAMS PWT
51 32.793 550 353.658
52 33.436 551 354.301
53 34.079 552 354.944
54 34.722 553 355.587
55 35.365 554 356.230
56 36.008 555 356.873
57 36.651 556 357.516
58 37.294 557 358.159
59 37.937 558 358.802
60 38.580 559 359.445
61 39.223 560 360.088
62 39.866 561 360.731
63 40.509 562 361.374
64 41.152 563 362.017
65 41.795 564 362.660
66 42.438 565 363.303
67 43.081 566 363.946
68 43.725 567 364.589
69 44.368 568 365.232
70 45.011 569 365.875
71 45.654 570 366.518
72 46.297 571 367.161
73 46.940 572 367.804
74 47.583 573 368.447
75 48.226 574 369.090
76 48.869 575 369.733
77 49.512 576 370.376
78 50.155 577 371.019
79 50.798 578 371.662
80 51.441 579 372.305
81 52.084 580 372.948
82 52.727 581 373.591
83 53.370 582 374.234
84 54.013 583 374.877
85 54.656 584 375.520
86 55.299 585 376.163
87 55.942 586 376.806
88 56.585 587 377.449
89 57.228 588 378.092
90 57.871 589 378.735
91 58.514 590 379.378
92 59.157 591 380.021
93 59.800 592 380.664
94 60.443 593 381.307
95 61.086 594 381.950
96 61.729 595 382.593
97 62.372 596 383.236
98 63.015 597 383.879
99 63.658 598 384.522
100 64.301 599 385.165
GRAMS PWT GRAMS PWT
101 64.944 600 385.808
102 65.587 601 386.451
103 66.230 602 387.094
104 66.873 603 387.737
105 67.516 604 388.380
106 68.159 605 389.023
107 68.802 606 389.667
108 69.445 607 390.310
109 70.088 608 390.953
110 70.731 609 391.596
111 71.374 610 392.239
112 72.017 611 392.882
113 72.660 612 393.525
114 73.303 613 394.168
115 73.946 614 394.811
116 74.589 615 395.454
117 75.232 616 396.097
118 75.875 617 396.740
119 76.518 618 397.383
120 77.161 619 398.026
121 77.804 620 398.669
122 78.447 621 399.312
123 79.090 622 399.955
124 79.733 623 400.598
125 80.376 624 401.241
126 81.019 625 401.884
127 81.662 626 402.527
128 82.305 627 403.170
129 82.948 628 403.813
130 83.591 629 404.456
131 84.234 630 405.099
132 84.877 631 405.742
133 85.520 632 406.385
134 86.163 633 407.028
135 86.807 634 407.671
136 87.450 635 408.314
137 88.093 636 408.957
138 88.736 637 409.600
139 89.379 638 410.243
140 90.022 639 410.886
141 90.665 640 411.529
142 91.308 641 412.172
143 91.951 642 412.815
144 92.594 643 413.458
145 93.237 644 414.101
146 93.880 645 414.744
147 94.523 646 415.387
148 95.166 647 416.030
149 95.809 648 416.673
150 96.452 649 417.316
GRAMS PWT GRAMS PWT
151 97.095 650 417.959
152 97.738 651 418.602
153 98.381 652 419.245
154 99.024 653 419.888
155 99.667 654 420.531
156 100.310 655 421.174
157 100.953 656 421.817
158 101.596 657 422.460
159 102.239 658 423.103
160 102.882 659 423.746
161 103.525 660 424.389
162 104.168 661 425.032
163 104.811 662 425.675
164 105.454 663 426.318
165 106.097 664 426.961
166 106.740 665 427.604
167 107.383 666 428.247
168 108.026 667 428.890
169 108.669 668 429.533
170 109.312 669 430.176
171 109.955 670 430.819
172 110.598 671 431.462
173 111.241 672 432.105
174 111.884 673 432.749
175 112.527 674 433.392
176 113.170 675 434.035
177 113.813 676 434.678
178 114.456 677 435.321
179 115.099 678 435.964
180 115.742 679 436.607
181 116.385 680 437.250
182 117.028 681 437.893
183 117.671 682 438.536
184 118.314 683 439.179
185 118.957 684 439.822
186 119.600 685 440.465
187 120.243 686 441.108
188 120.886 687 441.751
189 121.529 688 442.394
190 122.172 689 443.037
191 122.815 690 443.680
192 123.458 691 444.323
193 124.101 692 444.966
194 124.744 693 445.609
195 125.387 694 446.252
196 126.030 695 446.895
197 126.673 696 447.538
198 127.316 697 448.181
199 127.959 698 448.824
200 128.602 699 449.467
GRAMS PWT GRAMS PWT
201 129.245 700 450.110
202 129.889 701 450.753
203 130.532 702 451.396
204 131.175 703 452.039
205 131.818 704 452.682
206 132.461 705 453.325
207 133.104 706 453.968
208 133.747 707 454.611
209 134.390 708 455.254
210 135.033 709 455.897
211 135.676 710 456.540
212 136.319 711 457.183
213 136.962 712 457.826
214 137.605 713 458.469
215 138.248 714 459.112
216 138.891 715 459.755
217 139.534 716 460.398
218 140.177 717 461.041
219 140.820 718 461.684
220 141.463 719 462.327
221 142.106 720 462.970
222 142.749 721 463.613
223 143.392 722 464.256
224 144.035 723 464.899
225 144.678 724 465.542
226 145.321 725 466.185
227 145.964 726 466.828
228 146.607 727 467.471
229 147.250 728 468.114
230 147.893 729 468.757
231 148.536 730 469.400
232 149.179 731 470.043
233 149.822 732 470.686
234 150.465 733 471.329
235 151.108 734 471.972
236 151.751 735 472.615
237 152.394 736 473.258
238 153.037 737 473.901
239 153.680 738 474.544
240 154.323 739 475.187
241 154.966 740 475.831
242 155.609 741 476.474
243 156.252 742 477.117
244 156.895 743 477.760
245 157.538 744 478.403
246 158.181 745 479.046
247 158.824 746 479.689
248 159.467 747 480.332
249 160.110 748 480.975
250 160.753 749 481.618
GRAMS PWT GRAMS PWT
251 161.396 750 482.261
252 162.039 751 482.904
253 162.682 752 483.547
254 163.325 753 484.190
255 163.968 754 484.833
256 164.611 755 485.476
257 165.254 756 486.119
258 165.897 757 486.762
259 166.540 758 487.405
260 167.183 759 488.048
261 167.826 760 488.691
262 168.469 761 489.334
263 169.112 762 489.977
264 169.755 763 490.620
265 170.398 764 491.263
266 171.041 765 491.906
267 171.684 766 492.549
268 172.327 767 493.192
269 172.970 768 493.835
270 173.614 769 494.478
271 174.257 770 495.121
272 174.900 771 495.764
273 175.543 772 496.407
274 176.186 773 497.050
275 176.829 774 497.693
276 177.472 775 498.336
277 178.115 776 498.979
278 178.758 777 499.622
279 179.401 778 500.265
280 180.044 779 500.908
281 180.687 780 501.551
282 181.330 781 502.194
283 181.973 782 502.837
284 182.616 783 503.480
285 183.259 784 504.123
286 183.902 785 504.766
287 184.545 786 505.409
288 185.188 787 506.052
289 185.831 788 506.695
290 186.474 789 507.338
291 187.117 790 507.981
292 187.760 791 508.624
293 188.403 792 509.267
294 189.046 793 509.910
295 189.689 794 510.553
296 190.332 795 511.196
297 190.975 796 511.839
298 191.618 797 512.482
299 192.261 798 513.125
300 192.904 799 513.768
GRAMS PWT GRAMS PWT
301 193.547 800 514.411
302 194.190 801 515.054
303 194.833 802 515.697
304 195.476 803 516.340
305 196.119 804 516.983
306 196.762 805 517.626
307 197.405 806 518.269
308 198.048 807 518.912
309 198.691 808 519.556
310 199.334 809 520.199
311 199.977 810 520.842
312 200.620 811 521.485
313 201.263 812 522.128
314 201.906 813 522.771
315 202.549 814 523.414
316 203.192 815 524.057
317 203.835 816 524.700
318 204.478 817 525.343
319 205.121 818 525.986
320 205.764 819 526.629
321 206.407 820 527.272
322 207.050 821 527.915
323 207.693 822 528.558
324 208.336 823 529.201
325 208.979 824 529.844
326 209.622 825 530.487
327 210.265 826 531.130
328 210.908 827 531.773
329 211.551 828 532.416
330 212.194 829 533.059
331 212.837 830 533.702
332 213.480 831 534.345
333 214.123 832 534.988
334 214.766 833 535.631
335 215.409 834 536.274
336 216.052 835 536.917
337 216.696 836 537.560
338 217.339 837 538.203
339 217.982 838 538.846
340 218.625 839 539.489
341 219.268 840 540.132
342 219.911 841 540.775
343 220.554 842 541.418
344 221.197 843 542.061
345 221.840 844 542.704
346 222.483 845 543.347
347 223.126 846 543.990
348 223.769 847 544.633
349 224.412 848 545.276
350 225.055 849 545.919
GRAMS PWT GRAMS PWT
351 225.698 850 546.562
352 226.341 851 547.205
353 226.984 852 547.848
354 227.627 853 548.491
355 228.270 854 549.134
356 228.913 855 549.777
357 229.556 856 550.420
358 230.199 857 551.063
359 230.842 858 551.706
360 231.485 859 552.349
361 232.128 860 552.992
362 232.771 861 553.635
363 233.414 862 554.278
364 234.057 863 554.921
365 234.700 864 555.564
366 235.343 865 556.207
367 235.986 866 556.850
368 236.629 867 557.493
369 237.272 868 558.136
370 237.915 869 558.779
371 238.558 870 559.422
372 239.201 871 560.065
373 239.844 872 560.708
374 240.487 873 561.351
375 241.130 874 561.994
376 241.773 875 562.638
377 242.416 876 563.281
378 243.059 877 563.924
379 243.702 878 564.567
380 244.345 879 565.210
381 244.988 880 565.853
382 245.631 881 566.496
383 246.274 882 567.139
384 246.917 883 567.782
385 247.560 884 568.425
386 248.203 885 569.068
387 248.846 886 569.711
388 249.489 887 570.354
389 250.132 888 570.997
390 250.775 889 571.640
391 251.418 890 572.283
392 252.061 891 572.926
393 252.704 892 573.569
394 253.347 893 574.212
395 253.990 894 574.855
396 254.633 895 575.498
397 255.276 896 576.141
398 255.919 897 576.784
399 256.562 898 577.427
400 257.205 899 578.070
GRAMS PWT GRAMS PWT
401 257.848 900 578.713
402 258.491 901 579.356
403 259.134 902 579.999
404 259.778 903 580.642
405 260.421 904 581.285
406 261.064 905 581.928
407 261.707 906 582.571
408 262.350 907 583.214
409 262.993 908 583.857
410 263.636 909 584.500
411 264.279 910 585.143
412 264.922 911 585.786
413 265.565 912 586.429
414 266.208 913 587.072
415 266.851 914 587.715
416 267.494 915 588.358
417 268.137 916 589.001
418 268.780 917 589.644
419 269.423 918 590.287
420 270.066 919 590.930
421 270.709 920 591.573
422 271.352 921 592.216
423 271.995 922 592.859
424 272.638 923 593.502
425 273.281 924 594.145
426 273.924 925 594.788
427 274.567 926 595.431
428 275.210 927 596.074
429 275.853 928 596.717
430 276.496 929 597.360
431 277.139 930 598.003
432 277.782 931 598.646
433 278.425 932 599.289
434 279.068 933 599.932
435 279.711 934 600.575
436 280.354 935 601.218
437 280.997 936 601.861
438 281.640 937 602.504
439 282.283 938 603.147
440 282.926 939 603.790
441 283.569 940 604.433
442 284.212 941 605.076
443 284.855 942 605.720
444 285.498 943 606.363
445 286.141 944 607.006
446 286.784 945 607.649
447 287.427 946 608.292
448 288.070 947 608.935
449 288.713 948 609.578
450 289.356 949 610.221
GRAMS PWT GRAMS PWT
451 289.999 950 610.864
452 290.642 951 611.507
453 291.285 952 612.150
454 291.928 953 612.793
455 292.571 954 613.436
456 293.214 955 614.079
457 293.857 956 614.722
458 294.500 957 615.365
459 295.143 958 616.008
460 295.786 959 616.651
461 296.429 960 617.294
462 297.072 961 617.937
463 297.715 962 618.580
464 298.358 963 619.223
465 299.001 964 619.866
466 299.644 965 620.509
467 300.287 966 621.152
468 300.930 967 621.795
469 301.573 968 622.438
470 302.216 969 623.081
471 302.860 970 623.724
472 303.503 971 624.367
473 304.146 972 625.010
474 304.789 973 625.653
475 305.432 974 626.296
476 306.075 975 626.939
477 306.718 976 627.582
478 307.361 977 628.225
479 308.004 978 628.868
480 308.647 979 629.511
481 309.290 980 630.154
482 309.933 981 630.797
483 310.576 982 631.440
484 311.219 983 632.083
485 311.862 984 632.726
486 312.505 985 633.369
487 313.148 986 634.012
488 313.791 987 634.655
489 314.434 988 635.298
490 315.077 989 635.941
491 315.720 990 636.584
492 316.363 991 637.227
493 317.006 992 637.870
494 317.649 993 638.513
495 318.292 994 639.156
496 318.935 995 639.799
497 319.578 996 640.442
498 320.221 997 641.085
499 320.864 998 641.728
GRAMS PWT 999 642.31

Quick Tips

Oh, and if you must know, 1000 Grams is 643.014 Pennyweight!

Also note that Jewelers will sometimes round these numbers off. i.e. 25.077 Pennyweight (39 Grams) could be written as 25.07 dwt.

Point: 1 Troy Ounce of Gold is 20 dwt or 31.1034768 Grams!

1 Normal Ounce of Gold is 18.2288 dwt or 28.3495231 Grams!

20 Pennyweights is 1 ounce of Gold.

1 Pennyweight is 1.555 Grams.

Just so you know!


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