Angle Converter – Free Online Unit Converter | SmartCrafterAI

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Angle Converter – Free Online Unit Converter

Convert between degrees, radians, gradians, arcminutes, arcseconds, turns, milliradians, angular mils and more. Instant, accurate and 100% private.

✅ Free 📐 10 Units ⚡ Live ⇄ Bidirectional 🔒 Private

⭐⭐⭐⭐⭐4.9 / 5(6,481 ratings)

📐Angle 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.

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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 6,481 verified reviews · 99% recommend this tool

Max B.

Yesterday

⭐⭐⭐⭐⭐

The degrees to radians conversion is what I use constantly in programming. The all-units table showing every angle format simultaneously is invaluable for math work.

Angle Converter

Vera S.

3 days ago

⭐⭐⭐⭐⭐

I do astronomy and the arcminute and arcsecond conversions are spot on. The precision with very small values (milli-radians) is excellent — no rounding errors.

Angle Converter

Felix T.

1 week ago

⭐⭐⭐⭐⭐

The NATO mil is rarely included in angle converters but I use it constantly for ballistics calculations. This is the only free tool I have found that includes it.

Angle Converter

Iris N.

2 weeks ago

⭐⭐⭐⭐⭐

Clean interface, accurate, no fuss. The gradian unit is hard to find on converters but essential for surveying work. This tool has everything I need in one place.

Angle Converter

📖 How to Use the Angle 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 do I convert degrees to radians?+

Multiply degrees by π/180 (approximately 0.017453). Example: 90° × π/180 = π/2 ≈ 1.5708 radians. To convert radians to degrees, multiply by 180/π ≈ 57.2958.

What is a gradian?+

A gradian (grad or gon) divides a full circle into 400 units instead of 360 degrees or 2π radians. This makes right angles exactly 100 gradians, which is convenient in surveying and some engineering fields.

What is the difference between arcminutes and arcseconds?+

1 degree = 60 arcminutes (′). 1 arcminute = 60 arcseconds (″). So 1 degree = 3,600 arcseconds. These units are used in astronomy, navigation and geographic coordinate systems.

What is a NATO mil?+

A NATO angular mil divides a full circle into 6,400 parts (one mil ≈ 0.05625°). It is used in military and ballistic contexts because at 1,000 metres, 1 mil subtends approximately 1 metre — convenient for range estimation.

What is a turn in angle measurement?+

A turn (also called a revolution or cycle) is one full rotation = 360° = 2π radians = 400 gradians. It is useful in engineering and physics when counting complete rotations.

💡 Why Use Our Angle 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.

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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 — Angle Conversion Factors

Common Conversions

Popular queries: degrees to radians radians to degrees angle converter degrees to gradians

From	To	Factor	Note
1 degree	0.017453 rad	× π/180	Standard conversion
1 radian	57.2958°	× 180/π	Radians to degrees
1 degree	1.11111 grad	× 1.11111	Metric angle
1 turn	360°	× 360	Full rotation
1°	60 arcmin	× 60	Precision angles
1 arcmin	60 arcsec	× 60	Astronomy/navigation
1 radian	1000 mrad	× 1000	Engineering