Is the mutation calculator exact?

It is an estimate based on visible multipliers and conservative inputs. Use it to avoid overbids, not as an official sell-price guarantee.

Which inputs matter most?

Base value and mutation multiplier matter most, then condition, grade bonus, and the auction or selling fee you assume.

Where do mutation multipliers come from?

The current version uses the community Fandom mutation table and labels odds or unclear mutation behavior as pending.

Why include auction cost?

Profit is not just sale value. The calculator subtracts your bid and fee estimate so you can see whether a locker was worth it.

Primary tool

Storage Hunters Open World Calculator Hub (July 2026): Tools & Value Checks

Start with the mutation-value tool, then use the focused calculator route when you need a shareable estimate. Keep each result tied to the bid, condition, grade, fee, and current multiplier assumptions.

Inputs

Estimate a locker find

Base item valueYour auction bidMutationCondition: 100%GradeFee estimate: 8%

Output

Estimated sale and profit

Gross value

$400

After fee

$368

Profit

+$308

ROI

513%

Gold is a B-tier multiplier

Reliable mid-high multiplier for auction flips.

This launch calculator uses community-sourced mutation multipliers and player-entered assumptions. Treat it as a bid check, not an official sell-price guarantee.