How to Convert Stones to Grams (st to g) – Weight Converter Tool

Converting stones to grams comes up more often than you might think. Whether you’re tracking your fitness progress at the gym, following a recipe from a British cookbook, or understanding medical weight measurements, knowing how to switch between these units helps you make sense of different measurement systems used around the world.

Understanding Stones and Grams

Stones are widely used in the UK and Ireland for measuring body weight, while grams are part of the metric system used worldwide. You’ll often see stones when reading British health articles or watching UK exercise shows, but your scale at home might only show grams or kilograms.

One stone equals exactly 6,350.29 grams. This might seem like an odd number, but it comes from the historical meaning of a stone as 14 pounds, and each pound contains about 453.59 grams.

When You’ll Need This Conversion

Health and Fitness Tracking Many exercise apps and gym equipment use different weight units. If you’re following a British workout plan that mentions losing “half a stone,” you’ll want to know that’s about 3,175 grams or roughly 3.2 kilograms.

Cooking and Baking Traditional British recipes sometimes call for ingredients measured in stones, especially for large amounts. Converting stones to grams helps you get the right amounts for your cooking.

Medical and Academic Purposes Healthcare professionals and students often meet weight measurements in different units. Understanding how to convert stones to grams guarantees accurate record-keeping and calculations.

Simple Step-by-Step Conversion

Converting stones to grams is straightforward once you know the basic relationship:

Step 1: Take your measurement in stones

Step 2: Multiply that number by 6,350.29

Step 3: The result gives you the weight in grams

For example, if someone weighs 10 stones, you multiply 10 × 6,350.29 = 63,502.9 grams.

For quick mental math, you can round 6,350.29 to 6,350 for approximate conversions that are close enough for everyday use.

Quick Reference Table

Here’s a handy conversion table for common stone values:

Stones 1-50:

Stones	Grams	Stones	Grams	Stones	Grams	Stones	Grams
1	6,350	13	82,554	26	165,108	38	241,211
2	12,701	14	88,904	27	171,458	39	247,561
3	19,051	15	95,254	28	177,808	40	253,912
4	25,401	16	101,604	29	184,158	41	260,262
5	31,751	17	107,955	30	190,509	42	266,612
6	38,102	18	114,305	31	196,859	43	272,962
7	44,452	19	120,655	32	203,209	44	279,313
8	50,802	20	127,006	33	209,559	45	285,663
9	57,152	21	133,356	34	215,910	46	292,013
10	63,503	22	139,706	35	222,260	47	298,363
11	69,853	23	146,056	36	228,610	48	304,714
12	76,203	24	152,407	37	234,960	49	311,064
						50	317,514

Stones 51-100:

Stones	Grams	Stones	Grams	Stones	Grams	Stones	Grams
51	323,864	63	400,089	76	482,522	88	558,726
52	330,215	64	406,439	77	488,872	89	565,076
53	336,565	65	412,789	78	495,222	90	571,426
54	342,915	66	419,139	79	501,573	91	577,776
55	349,266	67	425,490	80	507,923	92	584,127
56	355,616	68	431,840	81	514,273	93	590,477
57	361,966	69	438,190	82	520,623	94	596,827
58	368,316	70	444,540	83	526,974	95	603,178
59	374,667	71	450,891	84	533,324	96	609,528
60	381,017	72	457,241	85	539,674	97	615,878
61	387,367	73	463,591	86	546,025	98	622,228
62	393,717	74	469,942	87	552,375	99	628,579
		75	476,292			100	634,929

 

Stones (st)	Grams (g)
0 st	0 g
0.1 st	635.0415 g
1 st	6350.4159 g
2 st	12700.8319 g
3 st	19051.2478 g
4 st	25401.6638 g
5 st	31752.0797 g
6 st	38102.4957 g
7 st	44452.9116 g
8 st	50803.3276 g
9 st	57153.7435 g
10 st	63504.1595 g
20 st	127008.3190 g
30 st	190512.4785 g
40 st	254016.6380 g
50 st	317520.7976 g
60 st	381024.9571 g
70 st	444529.1166 g
80 st	508033.2761 g
90 st	571537.4357 g
100 st	635041.5952 g
500 st	3175207.9761 g
1000 st	6350415.9522 g
2000 st	12700831.9044 g
5000 st	31752079.7612 g

Practical Tips for Everyday Use

When dealing with stones to grams conversion in real life, remember that most people don’t need precise decimal places. Rounding to the nearest 50 or 100 grams usually works fine for fitness tracking or cooking purposes.

If you’re working with smaller measurements, converting to kilograms first might be easier since 1 stone equals approximately 6.35 kilograms, then multiply by 1,000 to get grams.