What Is 340ml

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Last updated: April 15, 2026

Quick Answer: 340ml is a metric volume measurement equal to 0.34 liters or approximately 11.5 fluid ounces. It is commonly used for beverage containers, particularly in countries using the metric system.

Key Facts

340ml equals 0.34 liters and is commonly used in beverage packaging.
It is equivalent to approximately 11.5 US fluid ounces.
The 340ml size is standard for many beer and soda cans in Canada and parts of Europe.
This volume is 60ml less than a standard US 12-ounce can (355ml).
340ml containers are designed to meet regional packaging regulations and consumer preferences.

Overview

340ml is a metric unit of volume commonly used in food and beverage industries, especially in countries that adopt the metric system. It represents a practical middle ground between smaller single-serve portions and larger multi-serving containers.

This measurement is particularly prevalent in packaging for soft drinks, alcoholic beverages, and ready-to-drink products. Its use reflects both consumer demand for portion control and regulatory standards in different markets.

340ml is equivalent to 0.34 liters, making it a convenient metric increment for beverage manufacturers in countries using the metric system.
In the United States, a standard can is 355ml, meaning 340ml is 15ml smaller, often used to align with international trade standards.
Canada commonly uses 340ml cans for beer and soft drinks, differing from the US standard to meet local packaging regulations.
The volume converts to approximately 11.5 US fluid ounces, which is just under the traditional 12-ounce size used in American packaging.
340ml containers are often aluminum cans designed for portability, recyclability, and shelf stability in retail environments.

How It Works

Understanding 340ml involves recognizing its role in packaging, measurement conversion, and international standards. This volume is not arbitrary—it reflects engineering, marketing, and regulatory considerations.

Volume: 340ml is a metric measurement equal to 340 milliliters or 0.34 liters, used primarily for liquid capacity. This unit is part of the International System of Units (SI).
Conversion: In imperial units, 340ml equals approximately 11.5 US fluid ounces, making it slightly smaller than the standard 12-ounce can used in the United States.
Container Design: Cans labeled 340ml are typically made from aluminum, with a height of about 122mm and a diameter of 58mm, optimized for vending machines and coolers.
Regional Use: The 340ml size is standard in Canada and parts of Europe, where it complies with local beverage regulations and consumer expectations for portion size.
Manufacturing Standard: Beverage producers use 340ml as a fill volume, ensuring consistency across batches and compliance with labeling laws in target markets.
Environmental Impact: 340ml aluminum cans are 100% recyclable, with a recycling rate of over 60% in countries like Canada, reducing waste and carbon footprint.

Comparison at a Glance

The following table compares 340ml to other common beverage volumes used globally:

Volume (ml)	Fluid Ounces (US)	Liters	Common Use
340	11.5	0.34	Canadian beer and soda cans
355	12	0.355	Standard US soda can
330	11.2	0.33	European standard can
500	16.9	0.5	Bottled water in many countries
750	25.4	0.75	Wine bottles and larger beer bottles

This comparison shows how 340ml fits within global beverage packaging trends. It is slightly larger than the European 330ml can but smaller than the US standard 355ml, reflecting regional preferences and trade considerations. The size supports portability and portion control, making it ideal for single servings in convenience-focused markets.

Why It Matters

The 340ml measurement plays a significant role in international trade, consumer behavior, and environmental sustainability. Its adoption influences how products are marketed, distributed, and consumed across borders.

Supports Portion Control: 340ml provides a moderate serving size, helping consumers manage intake of sugary or alcoholic beverages more effectively.
Facilitates International Trade: Standardizing on 340ml allows Canadian and European producers to export to the US and vice versa with minimal packaging changes.
Reduces Material Use: Compared to larger cans, 340ml containers use less aluminum, lowering production costs and environmental impact.
Aligns with Regulations: The size meets Canadian labeling and taxation standards for alcoholic beverages, ensuring compliance with federal and provincial laws.
Enhances Shelf Life: Sealed 340ml cans protect contents from light and oxygen, preserving flavor and carbonation for longer periods.
Promotes Recycling: Aluminum 340ml cans are widely accepted in recycling programs, contributing to high recovery rates and reduced landfill use.

As global markets continue to integrate, standardized volumes like 340ml help harmonize packaging, reduce waste, and meet consumer needs across diverse regions. Its continued use underscores the importance of metric consistency in international commerce.