NameStory

Kai: Meaning, Origin & Numerology

HawaiianGirl♃ Number 3
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What does Kai mean?

Kai is a Hawaiian girl's name meaning “sea”.

This Hawaiian name has been cherished by parents seeking Pacific and Hawaiian heritage.

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A 14-page PDF built from Kai and your child's birth date. $4.99 one-time, no account needed.

Origin & History

Kai embodies the serene beauty of Pacific Island cultures, particularly Hawaiian heritage. Pacific names often reflect nature, spirituality, and the harmonious relationship with the ocean and islands that define this region's unique cultural identity.

Numerology of Kai

Pythagorean Number

3

The Communicator

Key Traits

Creative, expressive, social

Ruling Planet

♃Jupiter

Planetary Traits

Expansion, wisdom, optimism

Names with numerology number 3 pair well with Life Paths 3, 6, 9. Check compatibility with your due date

Learn about Life Path 3: The Communicator♃ Jupiter in Numerology

The letters of Kai

3 letters: 2 vowels, 1 consonant.

  1. K2
  2. A1
  3. I9

Vowels (shaded): A, I.

Expression

3

The Creative

all letters

2 + 1 + 9 = 12 → 3

Soul Urge

1

Independence

vowels

1 + 9 = 10 → 1

Personality

2

Gentle

consonants

Popularity of Kai

Current Rank

#1054

Peak Year

2021

Total Births

8,243

Kai is a trending modern name, peaking in 2021.

Kai in the 2025 Social Security ranking

#1054

on the 2025 girls' list, and #93 on the boys' list.

Source: US Social Security baby name data, 2025.

  1. #1049Inara
  2. #1052Araya
  3. #1053Jubilee
  4. #1054Kai
  5. #1055Maelynn
  6. #1056Melani
  7. #1058Sapphire
  8. #1059Liyana

Is Kai compatible with your due date?

Enter your baby's due date to discover the cosmic compatibility between their life path and the name Kai.

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Get Kai's cosmic report

A 14-page PDF built from Kai and your child's birth date. $4.99 one-time, no account needed.

Names that share Kai's numbers

Kai: Expression 3, Soul Urge 1, Personality 2.

Browse all Number 3 names

Names that begin like Kai: Kai-

KaiaKairoKaidenKailaniKaizenKaisonKailanyKaisenKaiserKaiusKairiKaisley

More Pacific & Hawaiian Names

Popular names sharing Kai's pacific & hawaiian heritage.

LeilaniKaiKehlaniAlaniAilaniKaylaniKaiaKailani
Browse all Pacific & Hawaiian names

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Frequently Asked Questions

What does Kai mean?
Kai is a Hawaiian name meaning "sea." It belongs to the Pacific & Hawaiian family of names, carrying Pacific and Hawaiian heritage.
What is the numerology number for Kai?
In Pythagorean numerology, Kai has the number 3, known as The Communicator. Key traits include: Creative, expressive, social. This number is ruled by Jupiter, the planet of expansion, wisdom, optimism.
Is Kai a popular baby name?
Kai is a unique choice that stands out from common names.
What origin is the name Kai?
Kai is a Hawaiian name from the Pacific & Hawaiian tradition. Kai embodies the serene beauty of Pacific Island cultures, particularly Hawaiian heritage. Pacific names often reflect nature, spirituality, and the harmonious relationship with the ocean and islands that define this region's unique cultural identity.
Is Kai compatible with my baby's birth date?
Name compatibility depends on your baby's Life Path number, which is calculated from their birth date. Kai (Number 3) pairs well with Life Paths 3, 6, 9. You can check the exact compatibility score for free at namestory.app/try by entering your due date and the name Kai.

Discover more names that match your baby's cosmic profile

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