CubeSat Budget Calculator
Build cost, launch cost, and operations for CubeSat missions.
About this calculator
This calculator breaks a CubeSat mission budget into the same line items a real program manager tracks, scaled by satellite size (measured in U, where 1U is a 10×10×10 cm, ~1.33 kg unit). Bus cost starts from a size-tiered base ($40K for 1U up to $350K for 12U+) and adds a modest per-unit scaling factor, while components (EPS, ADCS, comms, onboard computer) and power hardware (panels, batteries) scale roughly linearly with unit count. A commercial/academic toggle applies a 50% discount to bus and component costs for academic missions, reflecting the very real effect of volunteer labor, donated parts, and university lab access on non-commercial builds — though it leaves launch, insurance, and hardware costs like power system otherwise unaffected. Launch cost is simply units × your chosen rideshare price per U, referencing real SpaceX Transporter-class pricing in the $50-100K/U range.
Integration and testing is estimated at a flat 20% of total hardware cost (bus + components + power + payload), a common rule of thumb for AIT phases in small-sat programs. Ground segment cost scales with mission duration at a monthly rate that's higher for commercial missions (more staff, paid ground station time) than academic ones. Insurance is 5% of hardware-plus-launch cost, licensing is a flat commercial/academic split reflecting FCC/ITU coordination overhead, and a final 12% program management markup is applied to the sum of everything else — a fairly standard NASA/aerospace contingency-and-management figure. Treat every multiplier here as an industry rule of thumb, not a quote: actual CubeSat costs vary widely by orbit, redundancy requirements, and whether components are COTS or space-qualified.
Inputs
Results
Launch ($K)
180
Total mission cost ($K)
719.3
How to Use This Calculator
- Select CubeSat form factor (1U, 2U, 3U, 6U, 12U) and enter payload cost ($K).
- Set launch cost per unit ($K) and mission duration (months).
- Indicate whether the mission is commercial or academic for overhead multipliers.
- Review cost breakdown: bus, components, payload, launch, integration/test, and operations.
- Total mission cost typically runs 2–5× bus cost alone — budget for all phases from the start.
How the result changes with CubeSat size (U)
| CubeSat size (U) | Launch ($K) | Total mission cost ($K) |
|---|---|---|
| 1.5 | 90 | 551.7 |
| 2.25 | 135 | 635.5 |
| 4.5 | 270 | 1,066.1 |
| 7.5 | 450 | 1,796.6 |
What each input means
- CubeSat size (U)
- Number of standard CubeSat units. 1U = 10x10x10 cm, ~1.33 kg. Common sizes: 1U, 3U, 6U, 12U.
- Payload cost ($K)
- Cost of the primary instrument or payload in thousands of dollars.
- Launch cost per U ($K)
- Rideshare launch cost per CubeSat unit. SpaceX Transporter: ~$50-70K/U. Dedicated: $100-300K/U.
- Mission duration (months)
- Planned operational mission lifetime in months.
- Commercial (1) or Academic (0)
- 0 = university/academic mission (lower labor & licensing costs). 1 = commercial mission.
What each result means
- Spacecraft bus ($K)
- Cost of the satellite bus structure and assembly.
- Components ($K)
- EPS, ADCS, comms, OBC subsystems.
- Payload ($K)
- Primary instrument or payload cost.
- Launch ($K)
- Rideshare launch cost.
- Integration & test ($K)
- Assembly, integration, environmental testing.
- Ground ops ($K)
- Ground station access and mission operations.
- Insurance & licensing ($K)
- Launch insurance, FCC/ITU licensing.
- Total mission cost ($K)
- All-in mission cost including program management.
- Estimated mass (kg)
- Approximate spacecraft mass at ~1.33 kg/U.
- Cost per kg ($K/kg)
- Total mission cost divided by spacecraft mass.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersCubeSat size (U) = 3, Payload cost ($K) = 100, Launch cost per U ($K) = 60, Mission duration (months) = 12 = 5 input(s) provided
- Calculate LaunchLaunch = cubesatUnits * launchCostPerUK180 = 180
- Calculate Total mission costTotal mission cost = subtotal + programMgmtK719.3 = 719.3
- Calculate Spacecraft busSpacecraft bus = baseBusCostK * academicDiscount * (1 + (cubesatUnits - 1) * 0.08)92.8 = 92.8
- Calculate ComponentsComponents = cubesatUnits * 15 * academicDiscount45 = 45
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why does switching to "Academic" only discount some cost categories and not others?
The 50% academicDiscount multiplier is only applied to busCostK and componentsCostK, reflecting that volunteer labor and donated parts mainly cut bus assembly and subsystem costs. Power hardware (solar panels, batteries), launch, insurance, and licensing costs — set separately by isCommercial for ground ops and licensing — are left largely unaffected since those are priced by outside vendors or regulators regardless of who's building the satellite.
What exactly does the 20% integration & test line item cover?
integrationTestK is calculated as a flat 20% of hardwareCostK, which sums the bus, components, power system, and payload costs. It's a standard AIT (assembly, integration, and testing) rule of thumb in small-sat programs, applied uniformly regardless of CubeSat size or whether the mission is commercial or academic.
Why does insurance scale with hardware-plus-launch cost instead of mission duration?
insuranceK is calculated as 5% of (hardwareCostK + launchCostK) because launch insurance and hardware-loss risk are tied to the value of the satellite and its ride to orbit, not to how long the mission runs afterward. Ground ops cost is what scales with missionDurationMonths instead, since that's the ongoing cost of running the mission.
How is the final program management markup applied?
programMgmtK is 12% of the subtotal of every other cost category — hardware, integration/test, launch, ground segment, licensing, and insurance combined — added on top rather than baked into any single line item. This mirrors a typical NASA/aerospace contingency-and-management overhead figure applied at the very end of a mission budget.
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