MapleStory CalculatorEvent comparison
Keep level and star range fixed; compare no event, 30% off, 5/10/15 and Shining.
MAPLESTORY · UPGRADE PLANNING
MapleStory Star Force Calculator
Estimate enhancement mesos and destroyed equipment with Star Catch, Safeguard, MVP discounts and event combinations across six rule sets.
Historical no-boom option
This reproduces the archived no-boom function, not a PC-room price discount. The captured page has no active PC-room option.
Rules match the captured regional tables (2026-10-14 snapshot), not a live patch feed. Replacement equipment purchase prices are excluded. MVP discounts apply through the 15 → 16 attempt. Sources and formulas.
Your enhancement budget
Level 200 · 0 → 22 stars · GMS 30 Stars
Exact expected mesos47.18 B47,181,755,415 mesos
- Expected destroyed items
- 4.69
- Expected attempts
- 179.9
| Percentile | Mesos | Destroyed |
|---|---|---|
| 50% (median) | 33,704,233,550 | 3 |
| 75% | 64,221,977,025 | 7 |
| 80% | 73,464,942,760 | 8 |
| 85% | 84,583,041,600 | 9 |
| 90% | 100,128,767,930 | 12 |
| 95% | 125,932,865,800 | 14.05 |
Sample average: 46,843,617,144 mesos and 4.59 destroyed items. Sample min / max: 3,133,127,500 / 259,047,864,200 mesos; 0 / 31 destroyed items.
Destroyed-equipment frequency histogram
0 booms176 176 (17.6%)
1 booms154 154 (15.4%)
2 booms122 122 (12.2%)
3 booms94 94 (9.4%)
4 booms76 76 (7.6%)
5 booms53 53 (5.3%)
6 booms63 63 (6.3%)
7 booms40 40 (4%)
8 booms37 37 (3.7%)
9 booms36 36 (3.6%)
10 booms23 23 (2.3%)
11 booms24 24 (2.4%)
12 booms24 24 (2.4%)
13 booms13 13 (1.3%)
14 booms15 15 (1.5%)
15 booms12 12 (1.2%)
16 booms10 10 (1%)
17 booms5 5 (0.5%)
18 booms5 5 (0.5%)
19 booms4 4 (0.4%)
20 booms6 6 (0.6%)
21 booms2 2 (0.2%)
22 booms1 1 (0.1%)
23 booms1 1 (0.1%)
24 booms1 1 (0.1%)
25 booms1 1 (0.1%)
27 booms1 1 (0.1%)
31 booms1 1 (0.1%)
Monte Carlo estimates vary with seed and trial count. Min/max are observed samples, not theoretical limits. Boom percentiles use linear interpolation and may be fractional.
How Star Force is modeledExpected 47.18 BExpected booms 4.69
Plan your next upgrade
Replacement planning
Read destroyed equipment separately from mesos. Add spare-item costs before choosing an upgrade budget.
Risk reserve
Run percentiles with the same seed and enough trials to see how much a conservative budget exceeds the mean.
MapleStory Star Force Calculator FAQ
What does MapleStory Star Force Calculator include?
The selected rule set determines attempt costs, success, drops and destruction. Set equipment level, starting stars and target before comparing events.
Are replacement items included in mesos?
No. The mesos result covers enhancement attempts. Expected destroyed items are reported separately; multiply by your replacement price if you want an additional equipment budget.
Why do the average and sampled mean differ?
The displayed expected value is solved from the upgrade states. Percentiles come from finite seeded simulations, whose mean can differ from the exact expectation.
What is Shining Star Force in this calculator?
It combines 30% off meso costs with 5/10/15 guaranteed successes where the selected rules support them. It is not a forecast of the next event date.
When should I calculate percentiles again?
After changing an input. Exact averages update immediately, but the old sample table is hidden until a new simulation finishes.
Does a 95th-percentile cost guarantee success?
No. About 5% of modeled sessions can cost more. Observed sample minimum and maximum are not theoretical limits.
How do I compare this with MathBro?
Match server rules, equipment level, start and target stars, Star Catch, Safeguard, MVP, event and trial count. Seeded samples are not expected to equal another random run; compare rules and sufficient samples, not one maximum.
Can I reuse one estimate for another equipment level?
Change the level first: enhancement costs depend on equipment level. Keep the same regional rule set and event flags for a meaningful comparison.
Compare the right numbers
Exact expectation
A state-based average that updates with inputs; not a percentile.
Seeded simulation
A sample distribution for cost and booms; trial count and seed affect percentiles.
MathBro comparison
Match the selected rules and flags first. Different random sessions need not share a sample maximum.
Reference interfaces: MathBro Cubing · MathBro Star Force. Our table snapshots and formulas are listed in methodology.
Compare an enhancement budget
Choose the matching rules, set a target, and leave room for unlucky outcomes.
Back to calculator →Calculator 2.0 · calculator collection · Potential table: 2023-11-14