Genshin Impact Primogem to USD Calculator
Find the cheapest Genesis Crystal packs for any number of Primogems or wishes in US dollars, with cost per wish and a Welkin Moon comparison.
Genesis Crystals bought with real money convert one-to-one into Primogems, and 160 Primogems buy one wish. Because the bigger packs carry larger bonuses, the cheapest way to reach a target is not always obvious. This calculator searches every pack combination for the lowest US price that covers your Primogems or wishes, shows the price per wish for each pack and compares it with Blessing of the Welkin Moon.
How to use this tool
- Choose whether you are counting wishes or Primogems.
- Enter the amount you want, for example 90 wishes for hard pity.
- Tick the first-time bonus box if every tier still shows its double bonus in the shop.
- Read the cheapest pack mix, the cost per wish and the Welkin Moon comparison.
Formula
Minimise Σ nᵢ × priceᵢ subject to Σ nᵢ × crystalsᵢ ≥ Primogems needed
Primogems needed = wishes × 160. Pack sizes include the standard bonus: 60, 330, 1,090, 2,240, 3,880 and 8,080 crystals for $0.99, $4.99, $14.99, $29.99, $49.99 and $99.99. With the first-time option each tier can also be bought once at double base crystals. Welkin Moon gives 300 crystals at once plus 90 Primogems a day for 30 days.
Example
90 wishes need 90 × 160 = 14,400 Primogems. The cheapest mix is one $99.99 pack (8,080), one $49.99 pack (3,880), one $29.99 pack (2,240) and four $0.99 packs (60 each): 14,440 crystals for $183.93, about $2.04 per wish. Buying the same Primogems through Welkin Moon would take 5 months and cost $24.95, if you log in every day.
Frequently asked questions
How much does one wish cost in real money?
Between about $1.98 on the $99.99 pack and $2.64 on the $0.99 pack, before tax. Welkin Moon works out at roughly $0.27 per wish, but only if you claim it every day for 30 days.
How much does hard pity cost in Genshin Impact?
Ninety wishes cost $183.93 at the cheapest pack mix. A guaranteed featured 5-star can take 180 wishes from zero pity, which costs $360.89.
Is it cheaper to buy two small packs than one big one?
Sometimes. Two $14.99 packs give 2,180 crystals for $29.98, one cent less than the $29.99 pack but 60 crystals fewer, so the best choice depends on how many you need. The calculator checks all of these trade-offs.
Do the prices include tax?
No. These are US list prices; sales tax is added at checkout, and other countries use their own price tiers.
Sources
Last updated: 2026