Reliability Calculator - Online Calculator

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🛰️ Reliability Block Diagram / MTBF Calculator

Series / parallel / k-out-of-n system reliability, MTBF and mission reliability

System structure

Mission time t (h)

MTTF of each component (h, one per line)

Notes

· Exponential distribution: R_i(t)=e^(−t/MTTF). Series R_sys=ΠR_i, λ_sys=Σλ_i; Parallel R_sys=1−Π(1−R_i).

· k-out-of-n: R_sys=Σ_{i=k..n} C(n,i)·R^i·(1−R)^(n−i).

Reliability and MTBF calculator: convert failure rate, MTBF, MTTR and availability, compute reliability R(t) under the exponential distribution.