Table of Artillery Caliber Equivalents

"Pounder"
Measure
Millimeter/Inches
Measure
Countries 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

Compiled and formatted by Larry Jewell and Patrick Clancey, HyperWar Foundation