How many pounds is 1 kilogram?

1 kilogram equals approximately 2.20462 pounds. Multiply kilograms by 2.20462 to convert to pounds, or divide pounds by 2.20462 to get kilograms.

How many grams are in an ounce?

1 ounce (avoirdupois) equals exactly 28.349523125 grams. For most everyday use, 28.35 g is accurate enough.

What is a stone in kilograms?

1 stone equals 6.35029318 kilograms (14 pounds). Stones are still commonly used in the UK and Ireland to express body weight.

What's the difference between a metric ton, short ton, and long ton?

Metric ton (t) = 1,000 kg ≈ 2,204.62 lb. US short ton = 2,000 lb ≈ 907.18 kg. UK long ton = 2,240 lb ≈ 1,016.05 kg.

How accurate is this weight converter?

We use the internationally defined exact conversion factors (e.g. 1 lb = 453.59237 g). Results are rounded to 6 significant digits for readability.

Are weight and mass the same thing?

Strictly speaking, mass is the amount of matter (kg, g) and weight is the force gravity exerts on it (newtons). In everyday language they're used interchangeably, and this tool converts mass units as 'weight'.

How do I convert kg to lb manually?

Multiply kilograms by 2.20462. Example: 75 kg × 2.20462 = 165.347 lb.

What units are used for jewelry and gemstones?

Carats (ct) for gemstones — 1 carat = 0.2 g (200 mg). Grains (gr) are also used historically for pearls and bullets — 1 grain ≈ 64.799 mg.

Does this work offline and on mobile?

Yes. The converter runs entirely in your browser, so once the page is loaded it works offline. The layout is mobile-first and touch-friendly.

Is my data uploaded anywhere?

No. All conversions happen locally in your browser. We never send your numbers to a server.

Can I share my conversion as a link?

Yes. The URL updates with ?value= and ?unit= as you convert, so you can copy the browser URL and share the exact result.

What's the heaviest and smallest unit supported?

The smallest is the milligram (0.001 g) and the largest is the UK long ton (≈ 1,016,046.9 g).

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11 units

Weight Converter — kg, lb, oz, g, Stones & Tons

Instantly convert any weight or mass across 11 units — metric, imperial and specialty. Built for fitness trainers, international shipping, cooking, science labs and jewelry.

Convert weight

Type a value, pick a unit — every other unit updates instantly. The URL stays in sync so you can share the result.

Value

Enter any positive number. Decimals supported (e.g. 1.75).

All units

Try:

Quick swap:

75kgequals

Metric

Pound

165.347

Gram

75,000

Ounce

2,645.55

All 11 units6 sig. digits

Unit	Value	Copy
Milligram mg	75,000,000
Gram g	75,000
Kilogram kg source	75
Metric Ton t	0.075
Ounce oz	2,645.55
Pound lb	165.347
Stone st	11.8105
US Short Ton ton (US)	0.0826733
UK Long Ton ton (UK)	0.0738155
Carat ct	375,000
Grain gr	1,157,430

Tip: the URL updates as you convert — copy it to share the exact result.

Supported Units

Eleven units across the metric and imperial systems, plus carats and grains for specialty use.

Name	Symbol	System	Grams equivalent
Milligram	mg	Metric	0.001
Gram	g	Metric	1
Kilogram	kg	Metric	1,000
Metric Ton	t	Metric	1,000,000
Ounce	oz	Imperial / US	28.3495
Pound	lb	Imperial / US	453.592
Stone	st	Imperial / US	6,350.29
US Short Ton	ton (US)	Imperial / US	907,185
UK Long Ton	ton (UK)	Imperial / US	1,016,050
Carat	ct	Other	0.2
Grain	gr	Other	0.0647989

How to Use the Weight Converter

Type the number you want to convert into the Value field.
Choose its source unit from the dropdown (kg, lb, oz, g, stone, ton, …).
Read the equivalent in every other unit from the results grid — no submit needed.
Use Quick swap to instantly flip between popular pairs like kg ↔ lb.
Copy any individual value, or copy the page URL to share the conversion.

Conversion Formulas

Kilograms ↔ Pounds

lb = kg × 2.20462
kg = lb × 0.453592
Example: 75 kg × 2.20462 = 165.347 lb

Grams ↔ Ounces

oz = g × 0.0352740
g = oz × 28.349523
Example: 250 g × 0.0352740 = 8.819 oz

Stones ↔ Kilograms

kg = st × 6.350293
st = kg × 0.157473
Example: 12 st × 6.350293 = 76.20 kg

Metric Tons ↔ Pounds

lb = t × 2,204.62
t = lb × 0.000453592
Example: 1.5 t × 2,204.62 = 3,306.93 lb

Common Conversions

Quick reference tables for the most frequent kg ↔ lb and oz ↔ g lookups.

Kilograms to Pounds

kg	lb
1	2.20462
5	11.0231
10	22.0462
20	44.0924
25	55.1155
50	110.231
60	132.277
70	154.323
75	165.346
80	176.37
90	198.416
100	220.462

Pounds to Kilograms

lb	kg
1	0.453592
5	2.26796
10	4.53592
25	11.3398
50	22.6796
100	45.3592
125	56.699
150	68.0389
175	79.3787
200	90.7185
250	113.398
300	136.078

Ounces to Grams

oz	g
1	28.3495
2	56.699
4	113.398
6	170.097
8	226.796
10	283.495
12	340.194
16	453.592
20	566.99
24	680.389
32	907.185
48	1,360.78

Stones to Kilograms

st	kg
6	38.1018
7	44.4521
8	50.8023
9	57.1526
10	63.5029
11	69.8532
12	76.2035
13	82.5538
14	88.9041
15	95.2544
16	101.605
18	114.305

Metric vs Imperial

The metric system (grams, kilograms, tonnes) is the global scientific and trade standard, used by virtually every country in the world. The imperial system (ounces, pounds, stones, tons) is still widely used in the United States and, for body weight, the United Kingdom. A reliable converter bridges the two so a recipe written in ounces, a parcel labeled in pounds, or a gym plan in kilograms all make sense to anyone.

Use Cases

Fitness & body weight

Switch between kg and lb for workout logs, BMI inputs, and macro tracking.

International shipping

Compare carrier limits in kg, lb, and metric/short tons before booking freight.

Cooking & recipes

Convert ounces to grams when following recipes from another country.

Lab & science

Switch mg ↔ g ↔ kg for accurate sample masses and dosing calculations.

Jewelry & gemstones

Convert carats and grains to grams for valuations and certifications.

Everyday shopping

Compare product weights labeled in different units before you buy.

Accuracy & Rounding

All conversion factors come from the internationally agreed definitions (1 lb = 453.59237 g exactly, 1 oz = 28.349523125 g, 1 grain = 64.79891 mg). Results are rounded to six significant digits to stay readable; the underlying calculation is double-precision and effectively exact for everyday use.

Privacy & Performance

Every conversion runs locally in your browser. Nothing you type leaves your device — no logs, no analytics on your values, no server round-trip. The page weighs only a few KB and works offline once loaded.