0

The number 0 is the “all-dashes” anchor in Morse numbers. It’s long, steady, and unmistakable once your ear learns the five-beat dash rhythm. If you’re decoding real transmissions (or using a translator tool), 0 is one of those patterns you want to recognize instantly because it shows up in dates, prices, coordinates, and IDs.

People often search for things like:

• What is 0 in Morse code?
• How do you write the number 0 in Morse?
• What number is —– in Morse code?
• How long is 0 in Morse code?
• How do you separate numbers in Morse code?

This page gives you the exact 0 pattern, timing rules, how to avoid common mix-ups, and drills to make it automatic.

Quick Answer: What Is 0 in Morse Code?

The number 0 in Morse code is:

0 = —–

That means:

dash – dash – dash – dash – dash

In sound form:

dah – dah – dah – dah – dah

How to Write 0 in Morse Code (Timing)

Global timing rules:

• Dot = 1 time unit
• Dash = 3 time units
• Gap inside the same character = 1 unit
• Gap between characters = 3 units
• Gap between words = 7 units

For 0 = —–:

• Dash (3)
• internal gap (1)
• Dash (3)
• internal gap (1)
• Dash (3)
• internal gap (1)
• Dash (3)
• internal gap (1)
• Dash (3)
• then a 3-unit pause before the next character

Why it feels “long”: 0 has five dashes, so it’s one of the longest number characters to send and hear.

Why 0 Is Important

• It’s common in years (2020, 2030), money, measurements, and serial numbers.
• It trains your ear to tolerate long dash sequences without drifting.
• It helps you master the “numbers logic” in Morse: 6–0 are dash-led patterns.

0 vs Similar Patterns

Common comparisons:

• 0 = —–
• T = – (single dash)
• O = — (three dashes)

Key difference: 0 is five dashes, not one or three. If you’re hearing “it just keeps going,” you’re probably in 0 territory.

Practical Examples with 0

• “10”
  • 1 = .—-
  • 0 = —–
  • 10 = .—- —–
• “2025”
  • 2 = ..—
  • 0 = —–
  • 2 = ..—
  • 5 = …..
  • 2025 = ..— —– ..— …..

Mini Training: Lock In 0 (—–)

1. Decode
   Look at: —– → say “0” instantly.
2. Encode
   Think “0” → send five clean dashes with tight 1-unit gaps.
3. Contrast set

• • (T)
• — (O)
• —– (0)
  Ask: “How many dashes did I actually hear?”