Last updated: September 16, 2026
Quick answer: Divide grams by 1,000 to get kilograms. 1,000 g = 1 kg. So 500 g = 0.5 kg, 750 g = 0.75 kg, and 2,500 g = 2.5 kg. Move the decimal point three places to the left.
Gram to Kilogram
Instantly convert gram to kilogram with fast, accurate, real-time results.
Grams show up on nutrition labels, recipes, and postal scales. Kilograms are used for larger weights — luggage limits, produce prices, and bodyweight. Converting between them is just a matter of moving the decimal. For the reverse conversion, see the kg to grams converter.
Formula: Grams to kg
Since there are exactly 1,000 grams in a kilogram, dividing by 1,000 converts any gram value to kilograms. Equivalently: move the decimal point three places to the left.
Mental shortcut examples
- 100 g → 0.1 kg
- 250 g → 0.25 kg
- 500 g → 0.5 kg
- 1,500 g → 1.5 kg
- 3,200 g → 3.2 kg
Common Food Weights in g and kg
Grocery stores often price produce and meat by the kilogram, while recipes list ingredients in grams. Here's a reference for common foods:
| Food item | Weight (g) | Weight (kg) | Notes |
|---|---|---|---|
| Slice of bread | 28–35 g | 0.028–0.035 kg | Varies by thickness |
| Large egg | 56–63 g | 0.056–0.063 kg | USDA large grade |
| Medium apple | 182 g | 0.182 kg | About 1 cup chopped |
| Medium banana | 118 g | 0.118 kg | Without peel: 102 g |
| Chicken breast (1 piece) | 150–200 g | 0.150–0.200 kg | Boneless, skinless |
| Can of soup (standard) | 305 g | 0.305 kg | About 1.3 cups |
| Bag of flour (small) | 1,000 g | 1.0 kg | Standard grocery size |
| Bag of rice (standard) | 2,000 g | 2.0 kg | Feeds ~8–10 portions |
| Whole chicken | 1,500–2,000 g | 1.5–2.0 kg | Roasting size |
| Watermelon (whole) | 8,000–10,000 g | 8–10 kg | Full-size fruit |
Postal and Shipping Weight Guide
Shipping carriers charge by weight brackets. Knowing how to convert g to kg helps you predict postage costs:
| Weight bracket | In grams | In kg | Common items |
|---|---|---|---|
| Letter (standard) | Up to 100 g | Up to 0.1 kg | Documents, greeting cards |
| Large letter | 100–750 g | 0.1–0.75 kg | Small books, padded envelopes |
| Small parcel | 750–2,000 g | 0.75–2 kg | Clothing, small electronics |
| Medium parcel | 2,000–10,000 g | 2–10 kg | Books, shoes, kitchenware |
| Large parcel | 10,000–30,000 g | 10–30 kg | Appliances, sports equipment |
| Air freight minimum | Typically 500 g | 0.5 kg | Minimum chargeable weight |
Gym and Fitness — Plates and Dumbbells
Weight plates and dumbbells are labelled in kg in most countries (lb in the US). A standard Olympic barbell is 20 kg (44 lb). Common plate sizes in grams and kg:
| Plate / dumbbell | Grams | kg | lbs (approx.) |
|---|---|---|---|
| Smallest plate | 500 g | 0.5 kg | 1.1 lb |
| Light plate | 1,250 g | 1.25 kg | 2.76 lb |
| Standard plate | 2,500 g | 2.5 kg | 5.5 lb |
| Medium plate | 5,000 g | 5 kg | 11 lb |
| Large plate | 10,000 g | 10 kg | 22 lb |
| Competition plate | 20,000 g | 20 kg | 44 lb |
| Olympic barbell | 20,000 g | 20 kg | 44 lb |
Full Grams to kg Table
| Grams | kg | Grams | kg |
|---|---|---|---|
| 1 g | 0.001 kg | 600 g | 0.6 kg |
| 5 g | 0.005 kg | 700 g | 0.7 kg |
| 10 g | 0.01 kg | 750 g | 0.75 kg |
| 20 g | 0.02 kg | 800 g | 0.8 kg |
| 25 g | 0.025 kg | 900 g | 0.9 kg |
| 50 g | 0.05 kg | 1,000 g | 1 kg |
| 75 g | 0.075 kg | 1,250 g | 1.25 kg |
| 100 g | 0.1 kg | 1,500 g | 1.5 kg |
| 125 g | 0.125 kg | 2,000 g | 2 kg |
| 150 g | 0.15 kg | 2,500 g | 2.5 kg |
| 200 g | 0.2 kg | 3,000 g | 3 kg |
| 250 g | 0.25 kg | 4,000 g | 4 kg |
| 300 g | 0.3 kg | 5,000 g | 5 kg |
| 400 g | 0.4 kg | 10,000 g | 10 kg |
| 500 g | 0.5 kg | 25,000 g | 25 kg |
FAQs About Grams to kg
How many grams make 1 kg?
Exactly 1,000 grams = 1 kilogram. The prefix "kilo-" in the SI metric system always means 1,000, so 1 kilogram = 1,000 grams by definition.
How do I convert grams to kg in my head?
Divide by 1,000 — move the decimal point three places to the left. For example: 450 g → 0.45 kg; 3,750 g → 3.75 kg; 85 g → 0.085 kg.
What is 750 g in kg?
750 g ÷ 1,000 = 0.75 kg. Three-quarters of a kilogram — a common weight for fresh pasta, cheese blocks, and medium produce.
Is 1,500 g more or less than 1.5 kg?
They are exactly the same: 1,500 g = 1.5 kg. Divide 1,500 by 1,000 and you get 1.5 exactly.
What is 200 g in kg?
200 g = 0.2 kg. About the weight of a medium-sized onion, a large chocolate bar, or a typical deck of playing cards.
How do I convert grams to pounds (not kg)?
Multiply grams by 0.002205. Or divide by 453.592, since 1 lb = 453.592 g. For example, 500 g × 0.002205 = 1.1 lb. See the grams to ounces converter for a related conversion.
Sources
References & further reading
- Bureau International des Poids et Mesures (BIPM) — The International System of Units (SI), 9th edition — kilogram definition and gram relationship
- NIST — Guide for the Use of the International System of Units (SI)
- USDA FoodData Central — Food weight data
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