[en] The levels in ¹⁰³Rh have been studied by following the γ rays and x rays emitted in the decay of 39.35-day ¹⁰³Ru and 17.5-day ¹⁰³Pd. Several new γ rays have been detected with an anti-Compton spectrometer which allow the assignment of a new level and improved spin assignments. Conversion coefficients for most transitions following the decay of ¹⁰³Ru have been calculated using the γ-ray intensity values of this work and literature values for the relative intensities of conversion electrons. The conversion coefficient for the 53-keV transition was also determined via the x-ray to γ-ray coincidence method corrected for the 557γ-53γ angular correlation. The weighted average of both measurements yields the recommended value of α/subK/(53) = 1.95 +- 0.13 which corresponds to an M1 + (2.1 +- 2.0) % E2 transition. B (M1) and B (E2) values of (0.040 +- 0.001) and (213 +- 76) Weisskopf units, respectively, have been obtained for the 53-keV transition