7 converters. Ohms, kilohms, megohms and milliohms, each with the formula and the math worked out with your numbers.
4.7 kΩ = 4,700 Ω
2,200 Ω = 2.2 kΩ
1 MΩ = 1,000 kΩ
470 kΩ = 0.47 MΩ
50 mΩ = 0.05 Ω
0.1 Ω = 100 mΩ
1 GΩ = 1,000 MΩ