Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Nuclear
Critical Mass Calculator
Estimate the mass of a uniform-density fissile sphere given its known critical radius and material density. Useful for nuclear engineering coursework, criticality-safety analysis, and reactor physics demonstrations.
Fill in the required fields to see your result.
Nuclear
Reactor Criticality Calculator
Compute the neutron multiplication factor k for a nuclear reactor using the six-factor formula. Essential for reactor design, startup analysis, and safety margin assessment.
Fill in the required fields to see your result.
Key differences
| Critical Mass Calculator | Reactor Criticality Calculator | |
|---|---|---|
| Category | Nuclear | Nuclear |
| Inputs required | 2 | 5 |
| Result | Critical Mass (g) | Multiplication Factor (k) |
| What it does | Estimate the mass of a uniform-density fissile sphere given its known critical radius and material density. Useful for nuclear engineering coursework, criticality-safety analysis, and reactor physics demonstrations. | Compute the neutron multiplication factor k for a nuclear reactor using the six-factor formula. Essential for reactor design, startup analysis, and safety margin assessment. |