Special relativity calculator

γ, contracted length, and dilated time from v and rest values.

Calculator

Model / formula

Special relativity: γ, length, time (SI v, c built-in)

v (m/s)

L₀ (m)

Δt₀ (s)

Result

γ = 1.0006 L ≈ 0.9994 (length contraction L₀/γ) Δt ≈ 1.0006 (time dilation γ Δt₀)

v < c required.

Educational use only. Check signs, units, and modeling assumptions (e.g. flat Earth g, no air resistance unless stated).