Search For The Needle Class Odds Calculator (September 2026) — Spins & Gems Needed

The Search For The Needle class odds calculator below works out your real spin chances from the in-game rate table — pick a class, and results update instantly as you type.

Rates checked 2026-09-0640 Gems per spin

Search For The Needle class odds calculator: live calculator and Gem-budget mode showing your real single-spin chances, spins needed, and Gem cost across all 10 classes. Pick a target class below to begin.

1. Pick your target class (one or more)

2. What do you want to know?

Spins

Assumption: Independent rolls, no pity or rollback visible in checked builds. Results are probabilities, never guarantees. Rates and effect lines checked 2026-09-14 from the in-game spin panel; spins cost 40 Gems each. The panel's printed values total about 100.12%, so the maths uses the printed numbers rather than re-normalising them.

91.8%

chance of at least one target class in 10 spins

Gem cost: 400

Spins and Gems needed for common confidence levels
Chance	Spins needed	Gems needed
50%	3	120
75%	6	240
90%	10	400
95%	12	480
Expected average (1-in-N)	5	181

These are probabilities, not promises — no pity system is visible in the game. Free Gems from codes lower the real cost: check the codes page before spending Robux on Gem boosts.

How the math works

No black box

Every class has a single-spin chance shown right in the game's spin screen. The chance of hitting your target at least once in N spins is 1 - (1-p)^N, and the table flips that formula around to find the spins each confidence level needs. Gems are spins × 40.

No pity system is visible in the current build, so the calculator assumes every roll is independent. That's an assumption, not a fact about hidden game code — if the game ever adds a pity meter, we'll rebuild the math.

If the numbers look off

Quick fixes

Result looks too good? Check that you didn't stack several classes — the combined chance counts hitting any of them.
Numbers changed after an update? Rates get re-checked after every patch; the checked date above tells you which build the table describes.
Short on Gems? Codes sometimes grant free Gems — check the codes page before buying Gem boosts with Robux.

FAQ

Class odds questions

Do the tools store my data?

Only in your own browser (timer history, checklists). Nothing is uploaded to a server.

Are the tools accurate after updates?

Each tool shows the date its numbers were checked; after every game update we re-check rates and prices and refresh the labels.

Do I need an account?

No — every tool runs free in your browser.

Can the odds calculator guarantee a class?

No. It computes probabilities, and nothing in the game guarantees a roll.

How many Gems for Ultimate Farmer?

About 13,880 Gems for a 50% chance (347 spins) at 0.2% per spin. Set the target mode above for your own number.

Are the rates official?

They're read from the in-game spin screen (checked 2026-09-06) and re-checked after updates. The effects of most classes are a different story — the classes page separates confirmed from unconfirmed.