A transfer belt comprising: at least an elastic layer, characterized in that the transfer belt is used to transfer a toner image onto a recording medium, the toner image being carried on a first main surface (1a, 21s1') which is one of a pair of main exposed surfaces including the first main surface (1a, 21s1') and a second main surface (1b, 21s2') being positioned to face each other, when, using a lower block including a curved convex surface having a width of 20 [mm] and a curvature radius of 20 [mm] as an upper surface and a hole section having a diameter of 1.25 [mm] formed at an apex of the curved convex surface and an upper block including a curved concave surface having a width of 20 [mm] and a curvature radius of 20.3 [mm] as a lower surface, the transfer belt is placed on the upper surface of the lower block so that the first main surface (1a, 21s1') faces the upper surface of the lower block, a part of the transfer belt is interposed between the curved convex surface and the curved concave surface by moving down the upper block toward the lower block, and a pressed region which is the part of the transfer belt reaches a pressing force of 200 [kPa] at a pressing speed of 4 [kPa/ms] and then is constantly pressed by a pressing force of 200 [kPa], if a maximum value of displacement of a measurement region which is a portion of the first main surface (1a, 21s1') corresponding to the hole section is indicated by "a" [μm], and displacement of the measurement region after the displacement of the measurement region converges is indicated by "b" [μm], E [-] calculated by (a - b)/b using "a" and "b" satisfies a condition of 0.2 ≤ E ≤ 3, wherein the elastic layer contains an organic compound showing viscoelasticity, a vulcanizing agent, and 0.1 part by weight or more and 30 parts by weight or less of one or more types of a conducting agent, based on 100 parts by weight of the organic compound showing viscoelasticity, wherein the organic compound showing viscoelasticity is selected from the group consisting of butyl rubber, fluorine-based rubber, acrylic rubber, ethylene propylene rubber (EPDM), nitrile butadiene rubber, acrylonitrile butadiene styrene rubber, natural rubber, isoprene rubber, styrene-butadiene rubber, butadiene rubber, ethylene-propylene rubber, ethylene-propylene terpolymer, chloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, urethane rubber, syndiotactic 1,2-polybutadiene, epichlorohydrin rubber, silicone rubber, fluororubber, polysulfide rubber, polynorbornene rubber, hydrogenated nitrile rubber, thermoplastic elastomers, and mixtures thereof. at least an elastic layer, characterized in that the transfer belt is used to transfer a toner image onto a recording medium, the toner image being carried on a first main surface (1a, 21s1') which is one of a pair of main exposed surfaces including the first main surface (1a, 21s1') and a second main surface (1b, 21s2') being positioned to face each other, when, using a lower block including a curved convex surface having a width of 20 [mm] and a curvature radius of 20 [mm] as an upper surface and a hole section having a diameter of 1.25 [mm] formed at an apex of the curved convex surface and an upper block including a curved concave surface having a width of 20 [mm] and a curvature radius of 20.3 [mm] as a lower surface, the transfer belt is placed on the upper surface of the lower block so that the first main surface (1a, 21s1') faces the upper surface of the lower block, a part of the transfer belt is interposed between the curved convex surface and the curved concave surface by moving down the upper block toward the lower block, and a pressed region which is the part of the transfer belt reaches a pressing force of 200 [kPa] at a pressing speed of 4 [kPa/ms] and then is constantly pressed by a pressing force of 200 [kPa], if a maximum value of displacement of a measurement region which is a portion of the first main surface (1a, 21s1') corresponding to the hole section is indicated by "a" [μm], and displacement of the measurement region after the displacement of the measurement region converges is indicated by "b" [μm], E [-] calculated by (a - b)/b using "a" and "b" satisfies a condition of 0.2 ≤ E ≤ 3, wherein the elastic layer contains an organic compound showing viscoelasticity, a vulcanizing agent, and 0.1 part by weight or more and 30 parts by weight or less of one or more types of a conducting agent, based on 100 parts by weight of the organic compound showing viscoelasticity, wherein the organic compound showing viscoelasticity is selected from the group consisting of butyl rubber, fluorine-based rubber, acrylic rubber, ethylene propylene rubber (EPDM), nitrile butadiene rubber, acrylonitrile butadiene styrene rubber, natural rubber, isoprene rubber, styrene-butadiene rubber, butadiene rubber, ethylene-propylene rubber, ethylene-propylene terpolymer, chloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, urethane rubber, syndiotactic 1,2-polybutadiene, epichlorohydrin rubber, silicone rubber, fluororubber, polysulfide rubber, polynorbornene rubber, hydrogenated nitrile rubber, thermoplastic elastomers, and mixtures thereof.