Ten focused utilities · user-supplied inputs
Gacha Pull Calculators
Choose the exact worksheet you need: convert currency into pulls, measure pity distance, plan a savings pace, project a banner budget, or calculate fixed-rate drop and reroll odds with transparent formulas and user-supplied inputs.
Fast picks
- Currency to pulls: convert balances into whole pulls and leftover currency.
- Pity and savings: measure pulls remaining to a cap or the daily pace needed for a target.
- Banner deadline: project your final pull budget from days left, daily income and weekly bonus.
- Probability: solve at-least-one, multi-copy, target-chance, featured-share, reroll and two-banner comparisons.
Gacha Currency to Pulls Calculator
Convert a currency balance into whole pulls, using 160 per pull by default, and see total pulls plus leftover currency.
Gacha Pity Remaining Calculator
Check simple counter distance to a user-supplied cap without relying on game-specific banner rules or soft-pity estimates.
Gacha Pull Savings Planner
Convert a future pull target into a clear collection pace while keeping the assumptions entirely under your control.
Banner Deadline Pull Planner
Project how many pulls you will have by banner end from current savings, daily income, days left and weekly bonuses.
At Least One Drop Probability Calculator
Answer the basic “one or more” probability question with a stable closed-form calculation instead of repeated simulation.
Copies Within Pulls Probability Calculator
Model a multi-copy target with the binomial distribution rather than multiplying a single-hit percentage.
Pulls Needed for a Target Chance
Invert the usual probability formula to solve for pull count instead of testing budgets one by one.
Featured Target Two-Stage Chance Calculator
Separate “get the rarity” from “the rarity is the target” in a transparent constant-rate two-stage model.
Gacha Reroll Success Probability Calculator
Model repeated account-start attempts as groups of independent rolls without estimating how long the process takes.
Gacha Banner Rate Comparison Calculator
Compare complete session odds rather than looking only at the advertised per-pull percentages.
How these calculators differ from game-specific pity models
The tools in this section do not embed a publisher rule, community soft-pity curve, banner schedule, reward forecast, or currency pack. They answer narrower mathematical questions from user-supplied inputs. That makes each result easy to reproduce and keeps a rule update in one game from silently changing an unrelated calculation.
Inventory tools convert or project pull counts. Counter tools measure distance to a cap you provide. Probability tools explicitly state when they assume a constant rate and independent attempts. If the scenario has changing rates or guarantee states, use a documented game-specific model instead of forcing those rules into a fixed-rate formula.
Results describe the entered scenario, not what anyone should spend or which banner to choose. Check units before comparing outputs, keep target definitions consistent, and rerun the calculator whenever an input changes.