Table of Artillery Caliber Equivalents
"Pounder"
MeasureMillimeter/Inches
MeasureCountries Using 360-pdr 240mm/9.5in USA 240-pdr 203mm/8.0in USA 210-pdr 203mm/8.0in USA 200-pdr 183mm/7.2in UK 200-pdr 203mm/8.0in USA 100-pdr 152mm/6.0in NZ 100-pdr 140mm/5.5in UK 96-pdr 152mm/6.0in USSR 95-pdr 155mm/6.1in USA 94-pdr 150mm/5.9in Ger 80-pdr 140mm/5.5in UK 60-pdr 127mm/5.0in UK 60-pdr 120mm/4.7in USA 55-pdr 114mm/4.5in UK 53-pdr 120mm/4.7in Swe 50-pdr 120mm/4.7in UK/Swe/Dut/Ita 48-pdr 122mm/4.8in USSR 48-pdr 120mm/4.7in Bulg/UK/Ita 46-pdr 120mm/4.7in Swe 45-pdr 155mm/6.1in UK/Jap 45-pdr 120mm/4.7in Jap 40-pdr 120mm/4.7in Fra/Ger/UK/Ita/Dut 40-pdr 110mm/4.3in Ger/Cz 38-pdr 104mm/4.1in Aus 35-pdr 115mm/4.5in USSR 35-pdr 114mm/4.5in UK 35-pdr 110mm/4.3in Ger 35-pdr 102mm/4.0in UK 33-pdr 105mm/4.1in UK/USA/Ita/Fra/Jap 33-pdr 102mm/4.0in USA 32-pdr 104mm/4.1in Aus 30-pdr 102mm/4.0in UK 28-pdr 94mm/3.7in UK 25-pdr 88mm/3.5in UK/Ger 20-pdr 84mm/3.3in UK 18-pdr 80mm/3.1in Ger 18-pdr 76mm/3.0in UK/USA 17-pdr 76mm/3.0in UK 13-pdr 76mm/3.0in UK 12-pdr 76mm/3.0in UK 9-pdr 65mm/2.6in USA/Fra 7-pdr 70mm/2.8in Ita 6-pdr 80mm/3.1in Ger 6-pdr 57mm/2.3in UK 5-pdr 57mm/2.3in Ger 3-pdr 55mm/2.2in Ger 3-pdr 47mm/1.9in UK/Ita/Fra/Jap 2.5-pdr 50mm/1.9in Ger 2.5-pdr 45mm/1.8in USSR 2.2-pdr 40mm/1.6in UK/Swe 2-pdr 40mm/1.6in UK/USA/Ger/Swe 1.5-pdr 37mm/1.5in UK/USA/Ger/Fra/Swe/Jap 1-pdr 40mm/1.6in UK 1-pdr -pdr 37mm/1.5in USA/Ita/Aus 1-pdr 34mm/1.3in UK 1-pdr 1-pdr 30mm/1.2in Ger/Jap/Cz/USA 1-pdr 28mm/1.1in USA .75-pdr 42mm/1.7in Ger .75-pdr 30mm/1.2in UK/Fra/Ger/Jap/USA .5-pdr 25mm/1.0in USA .4-pdr 23mm/0.9in Fra/USSR/Ger