Head-mounted displays (HMDs) are used to create immersive virtual reality experiences. However, the methods for generating HMD environments and delivering stimuli can lead to discrepancies between the real world and HMD environments. This study assesses the impressions of “sufficient openness of space” and “presence of visual objects” across three settings: real spaces, spaces created with display panels (DP spaces), and immersive HMD spaces. Subsequently, we evaluated the mean values and standard deviations for these impressions. We analyzed and verified the differences and similarities among real, DP, and HMD spaces using correlation coefficients and confidence intervals. The results indicate that the HMD space resembled the real space more closely than the DP space regarding sufficient openness. However, even within the same virtual spatial configuration, the similarity between perception of distance and impression of space did not always align. In conclusion, although there are differences depending on the question items, the HMD space could potentially provide an experience similar to that of real space.