Delta-V Budget Calculator
Build a complete delta-V budget for your mission. Sum maneuver costs, compute fuel requirements, and track margin against propulsion system capacity.
What It Does
The Delta-V Budget Calculator lets you build a line-by-line delta-V budget for your entire mission. Add maneuvers (orbit insertion, stationkeeping, disposal, attitude control), specify contingency factors per line item, and the calculator sums the total with margin tracking. It then computes propellant mass using the Tsiolkovsky rocket equation for your specified propulsion system.
Key Features
- Line-item delta-V entries with contingency percentages
- Tsiolkovsky rocket equation for propellant mass computation
- Support for multiple propulsion systems (chemical, electric, cold gas)
- Margin tracking with visual indicators for budget health
Why It Matters
The delta-V budget is the single most important number in early mission design. It drives propulsion system selection, which drives spacecraft mass, which drives launch vehicle selection, which drives mission cost. An inaccurate delta-V budget cascades through every subsequent design decision. Having a structured, auditable budget with tracked margins prevents the "where did our margin go?" problem that plagues programs at PDR.
Start a free pilot to use this calculator with your own mission parameters.
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Included in every plan
All 50+ engineering calculators are available on every SMAD Portal plan, starting at $29/month. No add-ons, no per-calculator fees.