Oz to Kg Conversion - Free Fast Oz to kg Converter
Quickly convert oz to kg with our easy-to-use oz to kg conversion tool.
No more guessing weights. Digital Calculator oz to kg conversion gives you instant, spot-on results using the exact SI factor perfect for cooking, shipping, fitness logs, and lab notes. Converting oz to kg (and back to oz) is clean, fast and reliable.
Why users love this oz to kg converter:
- Precise in design: Uses the exact factor 1 oz = 0.028349523 kg for reliable results no rounding surprises.
- Instant answers: Results are updated as you type, so you can work with just one click.
- Crystal clear display: Displays both the exact value and a rounded result so you can read it easily.
- Conversion in a jiffy: Need kg to oz? Change direction in the blink of an eye no new tool required.
- Ready for anything: Works on both mobile and desktop; ideal for cooks, salespeople, lifters, and students.
What is an Ounce (oz)?
An ounce (oz) is a unit of mass from the imperial/US system, common in the United States and still used in the UK (especially in recipes). It is ideal for small quantities of ingredients, mail, and cosmetics.
Quick facts:
- Avoirdupois ounce (everyday use) = 28.349523 g (≈ 0.028349523 kg)
- Troy ounce (precious metals) = 31.1034768 g (≈ 0.0311034768 kg)
- Fluid ounce (fl oz) measures volume, not mass don’t mix it with oz.
Where Ounces Are Used
- Food & Cooking: “6 oz chicken,” “1 oz cocoa powder”
- Beverages (fl oz): Soft drinks, juices (volume label)
- Mail & Shipping: Envelopes, small parcels
- Cosmetics/Personal Care: “3 oz cream,” travel-size toiletries
- Jewelry/Metals: Troy ounces for gold, silver, bullion
What is a Kilogram (kg)?
A kilogram (kg) is the standard unit of mass in the International System of Units (SI). It is widely used around the world to measure weight and mass in science, industry, and everyday life.
1 kg = 1,000 g
Quick fact:
- Part of the metric system/SI units
- Modern definition tied to a fundamental physical constant (the Planck constant
Where Kilograms Are Used
- Groceries: Bulk items (rice, fruit, sugar)
- Body Weight & Fitness: Scales, plates outside the U.S.
- Medicine & Science: Precise lab/hospital measurements
- 4 Packaging, pallets, logistics
Historical Insight of Oz and Kg
- Ounce stems from Latin “uncia” (one-twelfth). Avoirdupois became standard for goods; troy remained for metals.
- Kilogram arrived with the metric system (France, 1795) and is now defined via the Planck constant for exact reproducibility worldwide.
Why Use an oz to kg Converter?
Whether you’re adjusting recipes, generating shipping labels, logging gym weights, or entering lab data, an accurate oz to kg conversion prevents errors.
How to Convert Oz to Kg With Formula
To convert oz to kg and kg to oz use these formulas:
Ounce to Kg Formula:
Kilograms (kg) = Ounces (oz) × 0.028349523
Round the factor to 0.02835
Kg to Oz Formula:
Ounces (oz) = Kilograms (kg) × 35.27396195
or divide kg by 0.028349523
Oz to Kg Conversion Example
14 0z to Kg
kg = 14 × 0.028349523 = 0.396893 kg = 0.3969 kg
10 Oz to Kg
10 × 0.028349523 = 0.283495 kg = 0.2835 kg
32 Oz to Kg
32 × 0.028349523 = 0.907185 kg = 0.9072 kg
Ounce to Kilogram Conversion Table
| Ounce (oz) | Kilogram (kg) | Ounce (oz) | Kilogram (kg) |
|---|---|---|---|
| 1 | 0.02835 | 50 | 1.41748 |
| 2 | 0.05670 | 60 | 1.70100 |
| 3 | 0.08505 | 70 | 1.98450 |
| 4 | 0.11340 | 80 | 2.26796 |
| 5 | 0.14175 | 90 | 2.55147 |
| 6 | 0.17010 | 100 | 2.83495 |
| 7 | 0.19845 | 120 | 3.40194 |
| 8 | 0.22680 | 140 | 3.98545 |
| 9 | 0.25515 | 160 (10 lb) | 4.53592 |
| 10 | 0.28350 | 180 | 5.10213 |
| 12 | 0.34019 | 200 | 5.66990 |
| 14 | 0.39689 | 250 | 7.08738 |
| 16 (1 lb) | 0.45359 | 300 | 8.50485 |
| 18 | 0.51029 | 400 | 11.3398 |
| 20 | 0.56699 | 500 | 14.1748 |
| 24 | 0.68039 | 600 | 17.0097 |
| 28 | 0.79379 | 700 | 19.8446 |
| 32 (2 lb) | 0.90718 | 800 | 22.6794 |
| 36 | 1.02058 | 900 | 25.5143 |
| 40 | 1.13398 | 1,000 | 28.3495 |
| 48 | 1.36078 | 1,500 | 42.5243 |
| 50 | 1.41748 | 2,000 | 56.6990 |
| 60 | 1.70100 | 5,000 | 141.7476 |
| 64 (4 lb) | 1.81437 | 10,000 | 283.4952 |
| 70 | 1.98450 | 20,000 | 566.9905 |
| 80 | 2.26796 | 50,000 | 1,417.476 |
| 90 | 2.55147 | 100,000 | 2,834.952 |
| 100 | 2.83495 | 200,000 | 5,669.905 |
| 120 | 3.40194 | 500,000 | 14,174.76 |
| 140 | 3.98545 | 1,000,000 | 28,349.52 |
| 160 (10 lb) | 4.53592 | 2,000,000 | 56,699.05 |
Note: Values rounded for readability. For lab/engineering, retain more decimals.
Daily Use Cases Where Ounce (oz) to Kilogram (kg) Used
Cooking & Baking
Convert ingredients like 8 oz → 0.2268 kg to scale recipes accurately, especially when following international recipes that use metric units. This ensures consistent taste, texture, and portion sizes whether you’re baking, cooking, or preparing beverages.
Shipping & E-commerce
Small products listed in ounces can be converted to kilograms for accurate international shipping labels, customs documentation, and inventory management. This helps avoid weight-based shipping errors and ensures compliance with global logistics standards.
Fitness & Sports
Track weight plates and workout equipment precisely:
16 oz (1 lb) → 0.4536 kg
32 oz (2 lb) → 0.9072 kg
This conversion is useful for programming workouts, planning strength training, and tracking progress in both metric and imperial systems. It also helps athletes and gyms standardize equipment for international clients or competitions.
Science & Laboratory Work
Record masses in kilograms for SI-compliant reporting when devices display ounces. This is critical in experiments, chemistry labs, medical research, and quality control processes where precise measurements are required to maintain accuracy and reproducibility.
Baby & Health Logs
Convert pediatric weights from ounces to kilograms for healthcare documentation, growth tracking, and medical records. This ensures doctors, nurses, and parents can consistently monitor infant and child development, especially when comparing growth charts that use metric units.
Daily Use Cases Where Kilogram (kg) to Ounce (oz) Used
Cooking & Baking
Convert ingredients like 0.5 kg → 17.64 oz when following recipes that use imperial units. This is especially helpful for home cooks or professional chefs working with US-based cookbooks, online recipes, or packaged ingredients that list ounces instead of kilograms.
Shipping & E-commerce
Products measured in kilograms can be converted to ounces for US or UK shipping labels, retail packaging, and inventory management. Accurate conversion ensures correct postage, reduces shipping errors, and aligns with customer expectations for product weight.
Fitness & Sports
Track gym equipment and weights using ounces:
1 kg → 35.27 oz
2 kg → 70.55 oz
This helps athletes, personal trainers, and sports facilities standardize equipment across different measurement systems and plan workouts with precise load increments.
Science & Laboratory Work
Convert masses recorded in kilograms to ounces when working with instruments or lab reports that require imperial units. This is important in chemistry experiments, pharmacology, nutrition studies, and industrial research to maintain consistency and prevent errors.
Baby & Health Logs
Convert pediatric weights from kilograms to ounces for scales, feeding charts, or parental tracking tools that display imperial units. This ensures consistent monitoring of infant growth and health, especially for families in countries using the imperial system.
Common Conversion Mistakes and how to Fixes it
- Confusing oz with fl oz: oz = mass, fl oz = volume.
- Mixing troy and avoirdupois: Only metals use troy. Everyday items use avoirdupois.
Ready to Convert in One Click?
Use Digital Calculator Oz to Kg Converter Fast, precise, and mobile-friendly tool for quick Oz to Kg Conversion.