Ca-doped barium zirconate titanate (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 (BCZT) ceramic composition has been synthesized using the solid-state reaction method. The ingredients of BCZT composition were ball milled and calcined at 1200, 1300, and 1400 °C for 4 h. BCZT compositions calcined at 1200 and 1400 °C for 4 h were sintered at 1500 °C for 6 h, whereas the material calcined at 1300 °C was sintered at 1500 °C and 1520 °C for 8 h. XRD and Raman measurements on the calcined powder reveal the phase pure synthesis of the BCZT composition with coexistence of rhombohedral, orthorhombic, and tetragonal phases. The microstructure of BCZT ceramics was examined on the unpolished surface of as-sintered ceramic using a scanning electron microscope (SEM). The average grain sizes of material calcined at 1200 and 1400 °C for 4 h and sintered at 1500 °C for 6 h are ~6.9 μm, 9.5 μm and the grain sizes of the BCZT material calcined at 1300 °C and sintered at 1500 °C and 1520 °C for 8 h are ~18.3 μm and ~37.6 μm, respectively. P-E hysteresis loop measurement has been carried out on BCZT ceramic sintered at 1500 °C for 6 and 8 h. Room temperature coercive field EC, and remnant polarization Pr for BCZT ceramic sintered at 1500 °C/6 h are ~0.75 kV/cm, ~2.8 kV/cm and ~1.27 μC/cm2, ~3.08 μC/cm2, respectively, and for the materials sintered at 1500 °C/8 h and 1520 °C/8 h these are ~2.98 kV/cm, ~3.13 kV/cm and ~7.28 μC/cm2, ~8.85 μC/cm2. It is observed that the average grain size and remnant polarization of the BCZT ceramics improve with increasing the sintering temperature and soaking time.