Kilogram to Pennyweight Conversion Calculator: Free Online Tool

Convert kilograms to pennyweights with our free online weight converter.

From:

Kilogram

To:

Pennyweight

How to Use the Calculator:

Enter the value you want to convert in the 'From' field (Kilogram).
The converted value in Pennyweight will appear automatically in the 'To' field.
Use the dropdown menus to select different units within the Weight category.
Click the swap button (⇌) to reverse the conversion direction.

How to Convert Kilogram to Pennyweight

Converting Kilogram to Pennyweight involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Kilogram = 643.015 pennyweights

Example Calculation:

Convert 5 kilograms: 5 × 643.015 = 3215.07 pennyweights

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Kilogram and a Pennyweight?

The kilogram is the base unit of mass in the International System of Units (SI). It is defined based on the fixed numerical value of the Planck constant.

The pennyweight (dwt) is a unit of mass in the troy weight system. It is equal to 1/20 of a troy ounce, or 24 grains. It is equivalent to exactly 1.55517384 grams.

Note: The Kilogram is part of the metric (SI) system, primarily used globally in science and trade. The Pennyweight belongs to the imperial/US customary system.

History of the Kilogram and Pennyweight

Originally defined as the mass of one liter of water. Later, it was represented by the International Prototype of the Kilogram (IPK), a platinum-iridium cylinder. In 2019, the definition was changed to be based on fundamental physical constants.

Historically, the pennyweight was the weight of a silver penny in medieval England. It became part of the standardized troy system used for precious metals and coinage.

Common Uses for kilograms and pennyweights

Explore the typical applications for both Kilogram (metric) and Pennyweight (imperial/US) to understand their common contexts.

Common Uses for kilograms

Global Standard: The primary unit for mass in science (physics, chemistry), engineering calculations, and international trade (e.g., commodity pricing).
Body Weight: Widely used worldwide (outside the US/UK primarily) for measuring human body weight for health and fitness tracking.
Food & Groceries: Used for selling and labeling larger quantities of food items like rice, flour, sugar, and some produce in metric countries.
Shipping & Logistics: Standard unit for calculating weights of packages and freight internationally.
Everyday Objects: Measuring the mass of common items like furniture, electronics, or luggage.

Common Uses for pennyweights

Jewelry: Used by jewelers and goldsmiths for measuring quantities of precious metals during crafting and valuation.
Dentistry: Sometimes used for measuring dental alloys.
Ammunition: Historically used for specifying the weight of components in ammunition.

Frequently Asked Questions

Questions About Kilogram (kg)

What is the base unit of mass in the SI system?

The kilogram (kg) is the base unit of mass in the International System of Units (SI).

Is the kilogram used worldwide?

Yes, it's the global standard for science, engineering, and international trade, and widely used for everyday measurements in most countries.

How was the kilogram originally defined?

It was initially defined as the mass of one liter of water, later represented by a physical artifact (the IPK), and is now based on the Planck constant.

About Pennyweight (dwt)

How many pennyweights are in a troy ounce?

There are 20 pennyweights (dwt) in 1 troy ounce (oz t).

How many grains are in a pennyweight?

There are 24 grains (gr) in 1 pennyweight (dwt).

How many grams are in a pennyweight?

There are exactly 1.55517384 grams (g) in 1 pennyweight (dwt).

Conversion Table: Kilogram to Pennyweight

Kilogram (kg)	Pennyweight (dwt)
1	643.015
5	3,215.075
10	6,430.149
25	16,075.373
50	32,150.747
100	64,301.493
500	321,507.466
1,000	643,014.931

All Weight Conversions

Kilogram to Gram Kilogram to Milligram Kilogram to Pound Kilogram to Ounce Kilogram to Stone Kilogram to Ton (metric)Kilogram to Ton (US)Kilogram to Ton (UK)Kilogram to Microgram Kilogram to Carat Kilogram to Slug Kilogram to Troy Ounce Kilogram to Grain Kilogram to Dram Kilogram to Quintal Kilogram to Atomic Mass Unit Kilogram to Pavan (India)Kilogram to Kati (India)Kilogram to Masha (India)Kilogram to Dina (India)Kilogram to Pras (India)Kilogram to Lota (India)Gram to Kilogram Gram to Milligram Gram to Pound Gram to Ounce Gram to Stone Gram to Ton (metric)Gram to Ton (US)Gram to Ton (UK)Gram to Microgram Gram to Carat Gram to Slug Gram to Troy Ounce Gram to Pennyweight Gram to Grain Gram to Dram Gram to Quintal Gram to Atomic Mass Unit Gram to Pavan (India)Gram to Kati (India)Gram to Masha (India)Gram to Dina (India)Gram to Pras (India)Gram to Lota (India)Milligram to Kilogram Milligram to Gram Milligram to Pound Milligram to Ounce Milligram to Stone Milligram to Ton (metric)Milligram to Ton (US)Milligram to Ton (UK)Milligram to Microgram Milligram to Carat Milligram to Slug Milligram to Troy Ounce Milligram to Pennyweight Milligram to Grain Milligram to Dram Milligram to Quintal Milligram to Atomic Mass Unit Milligram to Pavan (India)Milligram to Kati (India)Milligram to Masha (India)Milligram to Dina (India)Milligram to Pras (India)Milligram to Lota (India)Pound to Kilogram Pound to Gram Pound to Milligram Pound to Ounce Pound to Stone Pound to Ton (metric)Pound to Ton (US)Pound to Ton (UK)Pound to Microgram Pound to Carat Pound to Slug Pound to Troy Ounce Pound to Pennyweight Pound to Grain Pound to Dram Pound to Quintal Pound to Atomic Mass Unit Pound to Pavan (India)Pound to Kati (India)Pound to Masha (India)Pound to Dina (India)Pound to Pras (India)Pound to Lota (India)Ounce to Kilogram Ounce to Gram Ounce to Milligram Ounce to Pound Ounce to Stone Ounce to Ton (metric)Ounce to Ton (US)Ounce to Ton (UK)Ounce to Microgram Ounce to Carat Ounce to Slug Ounce to Troy Ounce Ounce to Pennyweight Ounce to Grain Ounce to Dram Ounce to Quintal Ounce to Atomic Mass Unit Ounce to Pavan (India)Ounce to Kati (India)Ounce to Masha (India)Ounce to Dina (India)Ounce to Pras (India)Ounce to Lota (India)Stone to Kilogram Stone to Gram Stone to Milligram Stone to Pound Stone to Ounce Stone to Ton (metric)