What is SteamID64? Complete Guide (2026)

What is SteamID64?

A SteamID64 is a unique 17-digit number assigned to every Steam account. It's the most important identifier on Steam — permanent, globally unique, and the foundation for everything from your public profile URL to game server bans and API lookups.

Example SteamID64

7656119

Base constant

Universe / type

012345678

Unique account number

Total: 17 digits. Always starts with 7656119.

Unlike your Steam display name or custom URL, your SteamID64 never changes. Even if you rename your account, delete your custom URL, or transfer games, the SteamID64 stays the same forever.

Why SteamID64 Matters

SteamID64 is the backbone of the Steam ecosystem. Here's where it's used every day:

Steam Profile URL

Your permanent profile URL uses your SteamID64: steamcommunity.com/profiles/76561198...

Game Servers

CS2, Rust, Garry's Mod, and hundreds of other games use SteamID64 for admin rights, whitelists, and ban lists.

Steam Web API

Every Steam API call that looks up a player uses SteamID64 as the primary identifier.

VAC Bans & Records

Valve Anti-Cheat bans and Steam support records are tied permanently to a SteamID64.

Profile Lookup Tools

Sites like SteamSpy, CSGO stats trackers, and inventory tools all use SteamID64 to fetch data.

Trading Platforms

Steam trading sites verify account identity and prevent fraud using SteamID64 lookups.

The Structure of a SteamID64

SteamID64 is a 64-bit integer that encodes four pieces of information about a Steam account:

Component	Bits	Meaning	Value (for normal users)
Universe	8 bits	Which Steam universe	1 (Public)
Account Type	4 bits	Type of account	1 (Individual user)
Instance	20 bits	Account instance	1 (Desktop)
Account ID	32 bits	The unique account number	Your unique value

The first three components (universe, type, instance) are the same for virtually all regular user accounts — they contribute the constant 76561197960265728 to the SteamID64 value. The last 32 bits (the account ID) is what's unique to you.

How to Recognise a SteamID64

A valid SteamID64 always has these properties:

✓

Exactly 17 digits long

No more, no less. Any deviation means it's not a valid SteamID64.

✓

Starts with 7656119

All public user accounts share this prefix. Some early accounts start with 76561197.

✓

Numeric only

No letters, brackets, or colons — just digits.

✓

Unique globally

No two Steam accounts share the same SteamID64, ever.

🔍 Not sure if it's a SteamID64?

Paste any number or profile URL into our Steam ID validator and converter. It detects the format automatically and tells you exactly what type of ID you have.

How to Find Your SteamID64

There are three easy ways to get your SteamID64:

Check your Steam profile URL

Log into Steam and click your name to view your profile. If your URL looks like steamcommunity.com/profiles/76561198..., that 17-digit number is your SteamID64.

Use our converter tool

Visit steamid64.net, paste your profile URL (even a custom URL like /id/yourname), and get your SteamID64 instantly.

Use the Steam client settings

In the Steam client, go to Steam → Settings → Interface and enable "Display Steam URL address bar when available". Your profile URL will show the SteamID64 directly.

Finding Someone Else's SteamID64

You can look up any public Steam account's SteamID64 — useful for adding someone to a server whitelist, checking ban records, or using API tools.

Get their Steam profile link

Right-click their name in Steam and choose "View Steam Profile", then copy the URL from the browser.

Paste it into our lookup tool

Go to steamid64.net and paste the link — it works with both numeric profile URLs and custom vanity URLs.

Copy the SteamID64

The tool will show their SteamID64 (and all other formats) within seconds, ready to copy.

SteamID64 and the Steam Web API

If you're a developer, SteamID64 is the primary identifier for Steam Web API calls. Here's an example of how it's used in a player summary request:

Steam API example

api.steampowered.com/ISteamUser/GetPlayerSummaries/v2/ ?key=[YOUR_API_KEY]&steamids=76561198012345678

The API returns profile data, game ownership, friend lists, achievement stats, and more — all keyed to the SteamID64 you provide.

Frequently Asked Questions

Is SteamID64 the same as my Steam account number?

Not exactly — your "account number" is the last 32 bits (the Account ID component), while SteamID64 is the full 64-bit encoding. But in everyday use, "Steam ID" or "SteamID64" refers to the full 17-digit number.

Is my SteamID64 private?

No. SteamID64 is a public identifier. Anyone can see your SteamID64 by viewing your profile URL. It does not expose your email address, password, or any private account information.

What is the oldest possible SteamID64?

The minimum SteamID64 for a public user account is 76561197960265729 (account ID = 1). The very first Steam accounts have SteamID64s just above this floor. Most modern accounts have IDs in the 76561198xxx range.

Can I have more than one SteamID64?

No — one Steam account, one SteamID64. However, if you own multiple Steam accounts, each has its own unique SteamID64.

Why do some sites show SteamID64 as a string, not a number?

SteamID64 exceeds the maximum safe integer in JavaScript (2^53 - 1 = 9007199254740991), which is smaller than most SteamID64 values. This means websites must store and handle it as a string to avoid precision loss.

Summary

SteamID64 is a permanent 17-digit number that uniquely identifies every Steam account. It starts with 7656119, never changes, and is the foundation for Steam profiles, game servers, the Steam API, and third-party tools. If you ever need to find yours — or someone else's — just paste a profile URL into our free Steam ID64 finder.

What is SteamID64? The Complete Guide