VetBD
Free veterinary tool

Veterinary Weight Converter

Convert animal weights between kilograms (kg), grams (g), milligrams (mg), pounds (lb), ounces (oz), and stone (st). Use the interactive converter for dogs, cats, horses, and other animals, or consult the quick-reference tables for common weight equivalents.

kg to lb lb to kg g to oz kg to g Horse weight conversion

Convert Animal Weight

Enter a weight, select the original unit and choose the unit you want. Your result updates automatically.

Converted weight 22.046226 lb
10 kg = 22.046226 lb

Equivalent weight in every supported unit

Kilograms (kg) 10 kg
Grams (g) 10,000 g
Milligrams (mg) 10,000,000 mg
Pounds (lb) 22.046226 lb
Ounces (oz) 352.739619 oz
Stone (st) 1.574730 st

Conversion factors are based on standard mass-unit definitions. Displayed results are rounded for readability.

Quick Weight Conversion Reference

Use this table to quickly estimate equivalent weights in kilograms, pounds, grams, and ounces. Values are rounded to a practical number of decimal places.

Weight Kilograms (kg) Pounds (lb) Grams (g) Ounces (oz)
100 grams 0.100 kg 0.220 lb 100.00 g 3.527 oz
250 grams 0.250 kg 0.551 lb 250.00 g 8.818 oz
500 grams 0.500 kg 1.102 lb 500.00 g 17.637 oz
1 kilogram 1.000 kg 2.205 lb 1,000.00 g 35.274 oz
2 kilograms 2.000 kg 4.409 lb 2,000.00 g 70.548 oz
5 kilograms 5.000 kg 11.023 lb 5,000.00 g 176.370 oz
10 kilograms 10.000 kg 22.046 lb 10,000.00 g 352.740 oz
20 kilograms 20.000 kg 44.092 lb 20,000.00 g 705.479 oz
25 kilograms 25.000 kg 55.116 lb 25,000.00 g 881.849 oz
50 kilograms 50.000 kg 110.231 lb 50,000.00 g 1,763.698 oz
100 kilograms 100.000 kg 220.462 lb 100,000.00 g 3,527.396 oz
500 kilograms 500.000 kg 1,102.311 lb 500,000.00 g 17,636.981 oz

Common Dog and Cat Weight Examples

The following examples show how familiar pet weights convert between metric and imperial units. They are illustrative values for conversion practice, not recommended weights or health assessments.

Example animal Example weight Pounds Ounces Grams
Small dog
An illustrative weight for a small adult dog; individual breeds vary. 		5.00 kg 11.02 lb 176.37 oz 5,000 g
Medium-sized dog
An illustrative weight for a medium-sized dog. 		15.00 kg 33.07 lb 529.11 oz 15,000 g
Large dog
An illustrative weight for a large adult dog. 		30.00 kg 66.14 lb 1,058.22 oz 30,000 g
Small cat
An illustrative weight for a smaller adult cat. 		3.00 kg 6.61 lb 105.82 oz 3,000 g
Adult domestic cat
An example weight only, not a target for every cat. 		4.50 kg 9.92 lb 158.73 oz 4,500 g
Large cat
An illustrative weight for a larger cat; body type and breed matter. 		7.00 kg 15.43 lb 246.92 oz 7,000 g
Important for pet owners A suitable weight varies with species, breed, age, body structure, and health. Use your veterinarian's assessment to understand whether an individual dog or cat is at a healthy weight.

Horse Weight Conversion

Horse weights are often recorded in kilograms or pounds, depending on the country and the setting. The same converter works for horses and other large animals: enter the known weight and choose the desired unit.

Example weight Pounds (lb) Stone (st) Grams (g)
300 kg 661.39 lb 47.24 st 300,000 g
400 kg 881.85 lb 62.99 st 400,000 g
450 kg 992.08 lb 70.86 st 450,000 g
500 kg 1,102.31 lb 78.74 st 500,000 g
550 kg 1,212.54 lb 86.61 st 550,000 g
600 kg 1,322.77 lb 94.48 st 600,000 g

These rows are example conversion values, not a reference range for every horse. Actual horse weight varies substantially by breed, size, age, and condition.

Understanding the Six Weight Units

The converter uses kilograms as its base unit internally. Each supported unit has a fixed conversion factor, allowing conversions in either direction.

kg

Kilograms

Kilograms are commonly used for recording animal weights in veterinary practices and many countries.

g

Grams

Grams are useful for small animals, newborn animals, and small weight measurements.

mg

Milligrams

Milligrams measure very small masses. This converter is for mass conversion, not medication dosing.

lb

Pounds

Pounds are widely used for animal weights in the United States and other settings.

oz

Ounces

Ounces are useful for expressing small weights in the imperial system.

st

Stone

Stone is an imperial unit equal to 14 pounds, sometimes used when discussing larger animals.

Weight Conversion Formulas

These formulas are useful when you need to convert an animal's recorded weight manually or check a result from the calculator.

Kilograms and pounds

Pounds = kilograms × 2.2046226218
Kilograms = pounds × 0.45359237

Example: 10 kg is approximately 22.0462 lb.

Kilograms and grams

Grams = kilograms × 1,000
Kilograms = grams ÷ 1,000

Example: 2.5 kg equals 2,500 g.

Grams and milligrams

Milligrams = grams × 1,000
Grams = milligrams ÷ 1,000

Example: 5 g equals 5,000 mg.

Kilograms and ounces

Ounces = kilograms × 35.27396195
Kilograms = ounces × 0.028349523125

Example: 1 kg is approximately 35.274 oz.

Pounds and ounces

Ounces = pounds × 16
Pounds = ounces ÷ 16

Example: 2 lb equals 32 oz.

Stone and pounds

Pounds = stone × 14
Stone = pounds ÷ 14

Example: 2 st equals 28 lb.

How to Use the Veterinary Weight Converter

  1. Enter the known weight. Type the number shown on your animal's weighing scale or record.
  2. Select the original unit. Choose kilograms, grams, milligrams, pounds, ounces, or stone.
  3. Select the destination unit. For example, choose pounds when converting a dog's weight from kg to lb.
  4. Read the converted value. The main result and the equivalent values in all six units update automatically.
  5. Copy the result if needed. Use the copy button to place the conversion result on your clipboard.

Frequently Asked Questions

How do I convert kilograms to pounds for a dog?

Multiply the weight in kilograms by 2.2046226218. For example, a 10 kg dog weighs approximately 22.05 lb.

How do I convert pounds to kilograms?

Divide the weight in pounds by 2.2046226218, or multiply pounds by 0.45359237. For example, 20 lb is approximately 9.07 kg.

How many ounces are in a kilogram?

One kilogram is approximately 35.27396 ounces. The converter uses the standard avoirdupois ounce.

How many grams are in an ounce?

One standard avoirdupois ounce equals 28.349523125 grams.

How many pounds are in one stone?

One stone equals exactly 14 pounds, or approximately 6.35029318 kilograms.

Can I use this tool for horses and other large animals?

Yes. You can convert weights in the supported units for horses and other animals. The result is a unit conversion only; it does not determine an animal’s ideal weight or health status.

Is this converter suitable for calculating medication doses?

No. This tool converts mass units only. Medication calculations require the correct prescribed dose, concentration, species-specific instructions, and veterinary guidance.

Why might a veterinary scale show a slightly different weight?

Differences can result from scale precision, rounding, movement, equipment calibration, or changes in the animal’s weight between measurements.

Educational and measurement disclaimer VetBD's weight converter performs mathematical unit conversions only. It does not diagnose disease, determine an animal's ideal weight, or calculate medication doses. Follow veterinary instructions for clinical decisions and medication-related calculations.

Page reviewed for conversion factors on 2026-10-24.