As of  January 2022, the cost of living in Oman can vary based on factors such as lifestyle, location, and individual spending habits. Here's a general overview of the average cost of living for both single individuals and families in Oman:

Single Individual:

1. Accommodation: Rent for a one-bedroom apartment in Muscat can range from approximately 250 to 400 OMR per month, depending on the location and amenities.
2. Utilities: Monthly utility bills (electricity, heating, cooling, water, garbage) may average around 40 to 50 OMR.
3. Food: Monthly groceries may cost around 70 to 100 OMR, depending on dietary preferences and eating habits.
4. Transportation: Public transportation costs are relatively low, and a monthly pass may cost around 10 to 15 OMR. Owning a car would involve additional expenses such as fuel and maintenance.
5. Entertainment and Miscellaneous: This can vary widely based on personal preferences, but an average estimate might be around 30 to 50 OMR.

Total Monthly Cost for a Single Individual: Approximately 400 to 600 OMR.

Family (Couple with Two Children):

1. Accommodation: Rent for a two or three-bedroom apartment or house may range from 400 to 700 OMR per month.
2. Utilities: Monthly utility bills may average around 50 to 80 OMR.
3. Schooling: If children attend international schools, tuition fees can range from 500 to 1,000 OMR per child, depending on the school.
4. Food: Monthly groceries for a family may cost around 150 to 250 OMR, depending on family size and dietary preferences.
5. Transportation: If the family owns a car, additional expenses for fuel and maintenance should be considered.
6. Entertainment and Miscellaneous: This can vary based on family activities and lifestyle, but an average estimate might be around 50 to 100 OMR.

Total Monthly Cost for a Family: Approximately 1,150 to 2,200 OMR.

These are general estimates, and actual expenses can vary based on individual circumstances. It's recommended to conduct detailed research and consider personal preferences when planning a budget for living in Oman. Additionally, cost factors may change over time, so it's advisable to check for the latest information.