Honkai Impact 3rd Dorm Supply Pity Calculator: Odds, Pity Thresholds and Guarantee

Hard pity: 100
Soft pity: None
Base rate: 1.5%
Cost per pull: 200 Crystals
Rate-up guarantee: Shared pool

This Honkai Impact 3rd pity calculator turns your pity counter into a real percentage. The Dorm Supply banner guarantees a top-rarity drop by pull 100, with a flat 1.5% rate on every pull until the guarantee. The guaranteed drop comes from the whole top-rarity pool, so it is not necessarily the featured unit. Starting from zero pity, 10 pulls give you a 14% chance and you need about 46 pulls for a coin-flip 50%. Set your current pity and the pulls you have saved to see your own number. Honkai Impact 3rd is the odd one out among HoYoverse games: no soft pity ramp, a flat 1.5% S-rank rate and a direct guarantee of the featured battlesuit at the cap.

Pity calculator for:

Pity you have right now

0Soft pity: 100Hard pity: 100

Pulls you can spend10

= 2,800 Crystals

Will you have enough by the next banner?

Type what you have, what you earn per week and when the banner ends. The planner turns it into pulls and into your real chance that day.

Currency you have now (Crystals)

Currency you earn per week

Banner ends on

Pity you have now

0 weeks to go

Pulls you will have

Chance of the featured drop

100

Pulls needed for 90%

How the Honkai Impact 3rd Dorm Supply pity system works

Counter. Every pull without a top-rarity drop adds 1 to your pity. The counter resets to 0 the moment you get one — it does not reset when the banner rotates.
Flat rate. Honkai Impact 3rd keeps the rate at 1.5% on every pull of this banner; nothing ramps up before the cap, so only the hard guarantee changes your odds.
Hard pity (100). If you reach pull 100 without a drop, that pull is forced to be top rarity. From zero that costs 20,000 Crystals.
Pool guarantee. The forced drop is any top-rarity unit from the current pool. Budget for more than 100 pulls if you want one specific unit.

How many pulls and Crystals you need in Honkai Impact 3rd

Target	Pulls	Crystals
10 pulls (one multi)	10	2,000
50% chance of a top-rarity drop	46	9,200
90% chance of a top-rarity drop	100	20,000
Hard pity (100) from zero	100	20,000

Chance of a top-rarity drop by number of pulls in Honkai Impact 3rd

Pulls from zero pity	Cumulative chance	Crystals
10	14%	2,000
20	26%	4,000
30	36%	6,000
40	45%	8,000
50	53%	10,000
60	60%	12,000
70	65%	14,000
80	70%	16,000
90	74%	18,000
100Hard pity	100%	20,000

Computed from the Dorm Supply banner's exact rate table: 1.5% base rate, hard pity at 100. Every row assumes you start at pity 0; type your real pity in the calculator to shift the curve.

How many pulls do you need in Honkai Impact 3rd? →Honkai Impact 3rd free pulls →How to get Crystals in Honkai Impact 3rd →

Real-money cost of Honkai Impact 3rd pulls

USD	EUR	Crystals	Pulls
$10	8.63 €	648	3
$20	17.25 €	1,296	6
$50	43.13 €	3,240	16
$100	86.27 €	6,480	32
Worst case (full guarantee)		20,000	100 · $309 / 266.23 €

Reference: the best-value pack, $99.99 for 32 pulls (about $3.12 each). Euros converted at the ECB rate (1 USD = 0.863 EUR, 2026-09-11), so $99.99 ≈ 86.26 €; the store's own EUR price, regional pricing and first-purchase bonuses change the total.

How many pulls does your money buy?

$5$20$200

Crystals

1,296

→

pulls

Uses the store pack with the best rate; regional prices change the count.