calculatorsonline.co.uk
Tsiolkovsky Rocket Equation Calculator
Calculate rocket delta-v from exhaust velocity and mass ratio.
target Free Online Tool
⚡ Instant Results
📊 Clear Comparison
🔒 100% Free Tool
Delta-v
Compare Your Options And Get Clear Answers
Calculate rocket delta-v from exhaust velocity and mass ratio.
Tsiolkovsky Rocket Equation Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: dv = Isp x g0 x ln(m0 / mf).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Tsiolkovsky Quick Guide
Typical values for reference.
| Isp s | Wet kg | Dry kg | dv m/s |
|---|---|---|---|
| 300 | 30000 | 5000 | 5,271 m/s |
| 350 | 50000 | 8000 | 6,290 m/s |
| 450 | 100000 | 12000 | 9,357 m/s |
| 900 | 80000 | 20000 | 12,235 m/s |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Tsiolkovsky Rocket Equation Calculator FAQ
Answers to common questions about this calculator.
It links delta-v to exhaust speed and mass ratio.
The relationship is logarithmic, so extra fuel gives diminishing gains.
Specific impulse, a measure of engine efficiency.
About 9.4 km/s including losses.