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Nuclear Criticality Calculator

Calculate the effective neutron multiplication factor (k_eff) of a nuclear reactor using the six-factor formula to assess whether the reactor is subcritical, critical, or supercritical. Essential for reactor design and safety analysis.

Neutron Production Rate (η (eta))

Thermal Utilization (f)

Resonance Escape (p)

Fast Fission Factor (ε (epsilon))

Non-Leakage Probability (P)

Fill in the required fields to see your result.

Nuclear

Nuclear Fuel Burnup Calculator

Estimates nuclear fuel burnup in MWd/tonne based on specific power, operating time, thermal efficiency, and initial U-235 enrichment. Used by reactor engineers to track fuel depletion and plan refueling schedules.

Initial U-235 Enrichment (%)

Specific Power (MW/tonne)

Operating Days (days)

Thermal Efficiency (%)

Fill in the required fields to see your result.

Key differences

	Nuclear Criticality Calculator	Nuclear Fuel Burnup Calculator
Category	Nuclear	Nuclear
Inputs required	5	4
Result	Multiplication Factor (k)	Burnup (MWd/tonne)
What it does	Calculate the effective neutron multiplication factor (k_eff) of a nuclear reactor using the six-factor formula to assess whether the reactor is subcritical, critical, or supercritical. Essential for reactor design and safety analysis.	Estimates nuclear fuel burnup in MWd/tonne based on specific power, operating time, thermal efficiency, and initial U-235 enrichment. Used by reactor engineers to track fuel depletion and plan refueling schedules.