Supplies and duration planner
Works from a generic schedule you define: a quantity per event, a number of events per period, and a number of periods. Container and bottle counts always round upward, because a fractional container cannot be purchased.
Schedule
Materials
Disposable reserve
Prices you enter
Requirement
Total events56
Total material required14 mg14000 mcg
Containers required3Rounded up from 2.8 containers of demand
Solvent required6 mL
Solvent bottles1
Disposables6256 events plus 10% reserve
Surplus material in final container1 mgMaterial paid for but not required by this schedule
Cost model
Based entirely on prices you entered. We do not source prices and do not sell anything.
Material$135.00
Solvent$12.00
Disposables$15.50
Shipping$15.00
Total$177.50
Per day$3.17Across 56 days
Per month$96.48Average 30.44-day month
Show the arithmetic
- Total events = 7 events/period × 8 periods = 56
- Total material = 250 mcg × 56 events = 14000 mcg
- Containers = CEIL(14000 mcg ÷ 5000 mcg per container) = 3
- Total solvent = 3 containers × 2 mL = 6 mL
- Solvent bottles = CEIL(6 mL ÷ 30 mL per bottle) = 1
- Disposables = CEIL(56 events × (1 + 10% reserve)) = 62
Computed with decimal arithmetic by a tested calculation service, not by a language model. These formulas are covered by property-based tests asserting mathematical invariants across thousands of generated cases.
Availability does not change arithmetic
If a container size is unavailable from a supplier, the mathematical requirement is unchanged. This planner reports what the schedule requires, not what happens to be in stock.