Analytic approximations to the p-11B fusion rate coefficient suitable foruse at both low (1 keV ⩽ T ⩽ 70 keV) and high (50 keV ⩽ T ⩽ 500 keV)temperatures are developed. Comparisons between these analyticapproximations and calculations of the p-11B fusion rate coefficient basedon numerical integration indicate that the overall error in theseapproximations is dominated by errors in the experimental measurementof the underlying p-11B fusion cross-sections.