Volume Converter – Free Online Unit Converter | SmartCrafterAI

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Volume Converter – Free Online Unit Converter

Convert between litres, gallons, millilitres, cubic metres, fluid ounces, cups, pints, quarts, tablespoons, teaspoons and more. Instant and 100% private.

✅ Free 🧪 16 Units ⚡ Live ⇄ Bidirectional 🔒 Private

⭐⭐⭐⭐⭐4.9 / 5(9,057 ratings)

🧪Volume Converter — Convert Now

From

Enter a value above to convert

Quick Pairs

≡All Units — Click any value to copy it

Unit	Symbol	Converted Value

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Live Conversion

Values update instantly as you type — in either the From or To field. Bidirectional, no button needed.

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All Units at Once

The table below the converter shows your value in every unit simultaneously. Click any to copy.

⇄

Swap Units

Click ⇄ to instantly reverse the direction of conversion — From becomes To and vice versa.

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100% Private

All conversion runs in JavaScript in your browser. No data is sent to any server.

⭐ User Reviews

4.9

⭐⭐⭐⭐⭐

Based on 9,057 verified reviews · 99% recommend this tool

Eva M.

Yesterday

⭐⭐⭐⭐⭐

The cooking unit conversions (cups, tablespoons, teaspoons) are perfect for recipe scaling. Being able to see all units at once is exactly what I needed for meal prep math.

Volume Converter

Ben F.

3 days ago

⭐⭐⭐⭐⭐

I always confuse US and UK gallons. Having both on the same converter with a clear label is really helpful. The swap button makes back-and-forth comparison instant.

Volume Converter

Omar K.

1 week ago

⭐⭐⭐⭐⭐

Used the ml to fl oz conversion for pharmaceutical calculations. The precision is excellent — 10 significant figures is more than enough for professional use.

Volume Converter

Hana P.

2 weeks ago

⭐⭐⭐⭐⭐

Brewer here. Litres to gallons is my daily conversion. The quick pairs make it a one-click job. The all-units table showing everything at once is a genuine time saver.

Volume Converter

📖 How to Use the Volume Converter

Enter a Value

Type the number you want to convert in either field. Conversion runs live as you type — no button press needed.

Select Your Units

Use the dropdowns to choose From and To units. Tap a Quick Pair button for the most common conversions.

See All Units at Once

Scroll to the All Units table to see your value converted into every available unit simultaneously.

Copy the Result

Click Copy next to the result, or click any value in the All Units table to copy it to your clipboard.

🎯 Other Converter Tools

❓ Frequently Asked Questions

How many millilitres in a litre?+

1 litre = 1,000 millilitres exactly. This is the fundamental SI relationship. 1 millilitre is also exactly equal to 1 cubic centimetre (cm³).

How many litres in a US gallon?+

1 US gallon = 3.785411784 litres exactly. The US gallon differs from the UK (Imperial) gallon — 1 UK gallon = 4.54609 litres.

What is the difference between US and UK fluid ounces?+

A US fluid ounce = 29.5735 mL. A UK fluid ounce = 28.4131 mL. They differ by about 4%. Always specify which system you are using when precision matters.

How many cups in a litre?+

1 litre = 4.2268 US cups. 1 US cup = 236.588 mL. Note that "cup" varies by country — the US, metric, Canadian and Imperial cups all have slightly different volumes.

How many tablespoons in a cup?+

1 US cup = 16 US tablespoons = 48 US teaspoons. 1 US tablespoon = 14.787 mL; 1 US teaspoon = 4.929 mL.

💡 Why Use Our Volume Converter?

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Both-Way Live

Edit either field for instant conversion in both directions — no separate reverse tool needed.

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All Units Table

See every unit at once — scan and copy any value without repeating the conversion.

⇄

One-Click Swap

Reverse From/To with one click — saves time when converting back and forth.

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Quick Pairs

Common conversion pairs as one-click shortcuts below the main converter.

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Zero-Upload Privacy

Runs entirely in your browser — nothing sent to any server.

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Free, No Account

All units, unlimited use — completely free. No sign-up, no watermarks.

📚 Reference — Volume Conversion Factors

Common Conversions

Popular queries: litres to gallons ml to fl oz cups to litres volume converter

From	To	Factor	Note
1 litre	0.264172 US gal	× 0.264172	Metric to US
1 US gallon	3.78541 litres	× 3.78541	US liquid measure
1 UK gallon	4.54609 litres	× 4.54609	Imperial measure
1 US fl oz	29.5735 mL	× 29.5735	US cooking/drinks
1 cup (US)	236.588 mL	× 236.588	Recipe measurement
1 m³	1,000 litres	× 1000	Cubic metre to litres