Zum Hauptinhalt springen
Calculator Tools
UmrechnerKostenlosOhne Anmeldung

Weight Converter - Kostenloser Online-Rechner

Convert weight or mass between kilograms, grams, milligrams, tonnes, pounds, ounces, stones and US/UK tons. Everything happens in your browser using SI-exact factors, so the answers match scientific reference tables to 10+ decimal places. Useful for shipping, fitness, cooking and lab work.

  • Formel auf der Seite sichtbar
  • Läuft in Ihrem Browser
  • Ihre Eingaben bleiben privat

Result

1 kg = ·2.2046 lb

Common conversions

1 kg= 2.2046 lb
1 lb= 0.453592 kg
1 kg= 1,000 g
1 g= 0.035274 oz
1 oz= 28.3495 g
1 st= 6.3503 kg
1 t= 1,000 kg
70 kg= 11.0231 st

Ein Teil der Inhalte wird noch auf Englisch angezeigt.

Info

Weight Converter verstehen

Weight conversion is used constantly across Indian homes, shops, gyms, logistics businesses and laboratories. Groceries are sold in kilograms and grams, medicine doses may use milligrams, gym weights are often marked in kilograms while international fitness content talks about pounds, courier companies charge by grams or kilograms, and import/export documents may use tonnes, pounds or ounces depending on the country. A parent checking a child's weight percentile, a cook converting an American recipe, a seller preparing an Amazon or Flipkart shipment, and a student doing chemistry practicals all need accurate weight conversion.

Strictly, kilogram measures mass and newton measures weight as force, but everyday commercial language uses 'weight' for mass units such as kg, g, lb and oz. This converter follows that practical convention while using exact international conversion factors. The most important factor is 1 pound = exactly 0.45359237 kg. From that, pounds, ounces, stones and tons can be converted consistently. The tool runs locally in the browser, so values are not sent anywhere and results appear instantly.

Anleitung

Weight Converter in 6 Schritten nutzen

  1. Pick the source unit (e.g. Kilogram).

  2. Type the weight you want to convert.

  3. Pick the target unit (e.g. Pound).

  4. The converted value appears instantly.

  5. Tap the swap button to reverse the direction (e.g. lb → kg).

  6. Refer to the Common conversions table for frequently used values.

Die Formel

So funktioniert Weight Converter

Every weight unit has a fixed multiplier to the SI base - the kilogram. To convert, we multiply your value by the source unit's factor (giving kilograms), then divide by the target unit's factor. The factors used are the international avoirdupois standard, where 1 pound is exactly 0.45359237 kilograms.

Formula

result = value × (fromUnit.toKg / toUnit.toKg)

  • valueInput weight
  • fromUnit.toKgSource unit's factor to kilograms
  • toUnit.toKgTarget unit's factor to kilograms
Die Mathematik

Wie Weight Converter zum Ergebnis kommt

All units are converted through kilograms. For example, 70 kg to pounds is 70 / 0.45359237 = 154.324 lb. The reverse, 154 lb to kg, is 154 × 0.45359237 = 69.853 kg. Using kilograms as the central unit keeps the formula clean and avoids separate pairwise conversion rules.

Small units matter in medicine and science. 1 kg = 1000 g, 1 g = 1000 mg, and 1 mg = 1000 micrograms. These powers of 1000 are easy, but unit mistakes can be serious. A dose written in mg should never be treated as grams. This converter is mathematically accurate, but medical dosing should always be checked against a prescription or protocol.

Large units differ by country. A metric tonne is exactly 1000 kg. A US short ton is 2000 lb, around 907.185 kg. A UK long ton is 2240 lb, around 1016.047 kg. Shipping documents, commodity contracts and international trade paperwork should specify which ton is being used.

Beispiele

Gelöste Beispiele

Gym conversion: 80 kg bench press to pounds

80 kg × 2.20462 = 176.37 lb. Many international fitness programmes use pounds, so this helps compare Indian gym plates with US training plans.

Recipe conversion: 8 oz butter to grams

1 oz = 28.3495 g. So 8 oz = 226.796 g, commonly rounded to 227 g. This is a standard conversion when adapting US baking recipes for Indian kitchens.

Courier shipment: 2.5 kg package to grams and pounds

2.5 kg = 2500 g = 5.5116 lb. Courier billing may use kg slabs in India, while international shipping labels may also show lb.

Anwendungsfälle

Wann Weight Converter nutzen

  • Fitness - converting body weight and gym weights between kg and lb.
  • Cooking - ounces and pounds to grams for recipes.
  • Courier and logistics - grams, kilograms and pounds for shipment billing.
  • Medicine - mg, g and kg checks for dosage calculations.
  • Agriculture - tonnes and kilograms for crop output and fertiliser.
  • Jewellery and lab work - gram and milligram precision.
  • International trade - metric tonne vs US/UK ton.
  • School science - mass conversion practice in physics and chemistry.
Vorsicht

Häufige Fehler und Stolperfallen

  • Confusing gram and kilogram. 1 kg is 1000 g, not 100 g.
  • Confusing ounce by weight with fluid ounce by volume.
  • Using US ton when the document means metric tonne.
  • Treating stone as a commonly used Indian unit; it is mostly UK/Ireland body-weight usage.
  • Rounding medicine or lab values too aggressively.
Profi-Tipps

Mehr aus diesem Tool herausholen

  • Quick mental kg to lb: multiply by 2.2.
  • Quick lb to kg: divide by 2.2 for an estimate.
  • For recipes, round grams to the nearest whole gram; for medicine, follow exact protocol.
  • Always label the unit in notes and invoices to avoid kg/lb confusion.
  • Pair with the cooking, BMI and shipping-related calculators when weight affects cost or health results.
FAQ

Fragen zu Weight Converter

What is the difference between mass and weight?

Strictly speaking, mass measures the amount of matter (kg, g) and weight measures the gravitational force on that mass (newton). In everyday and commercial use, both are reported in kilograms or pounds - and that's what this tool converts.

How many grams are in a pound?

1 pound = 453.59237 grams exactly. So 2 lb is about 907.185 g. The reverse - 1 kg = 2.20462 lb - is the most common conversion factor people memorize.

What is a stone?

A stone (st) is a British unit equal to 14 pounds, or 6.35029 kg. It's still common in the UK and Ireland for measuring body weight.

Is a US ton the same as a UK ton?

No. The US (short) ton is 2,000 lb ≈ 907.18 kg, while the UK (long) ton is 2,240 lb ≈ 1,016.05 kg. The metric tonne is exactly 1,000 kg, between the two.

How do I convert kg to lb quickly in my head?

Multiply kg by 2.2 for a rough answer (1 kg ≈ 2.2046 lb). For an exact value use this converter.

Is this converter accurate for medical doses?

Yes - the math is exact. But for medical or pharmaceutical work, always cross-check with the scale and protocol you're using; rounding choices and unit mistakes (g vs mg) cause far more errors than the conversion itself.

Convert with confidence

Conversion math is exact for unit families that share a base - every length unit can be expressed in metres, every weight in kilograms, every temperature in kelvin. The only real decisions are precision (how many decimals to display) and rounding (banker's rounding vs round-half-up). This converter exposes both. For currencies and crypto we pull live rates because they change every minute; for everything else the math works offline.

Indian land units (gaj, ground, bigha, acre, hectare) are wired into the area converter alongside global ones - useful for property listings and government records. The MB-to-GB converter handles the decimal-vs-binary distinction (1 GB = 1,000 MB in storage marketing, but operating systems display 1 GiB = 1,024 MiB) so you stop wondering why your '2 TB drive' shows up as 1.81 TB in Windows.

The Weight Converter is part of the Converters suite on Online Calculator Tools, alongside 6 related calculators. All tools share the same UI patterns, the same privacy-first rendering (nothing is sent to a server), and the same commitment to showing the formula and assumptions behind every result.