How do I calculate annual contract value?

Multiply weekly value by 52, or monthly by 12. If pricing per visit, multiply by visits per week, then by 52. This calculator handles all three methods and shows you the full breakdown.

Should I use 4 or 4.33 weeks per month?

Use 4.33 (52 weeks ÷ 12 months). Using 4 weeks per month underestimates annual revenue by about 8%. This calculator uses 4.33 for accuracy.

How do I account for bank holidays?

The UK has 8 bank holidays per year. If cleaning is not performed on bank holidays, deduct those visits from the annual total. For a 5-day contract, that is 8 fewer visits per year.

CleanCalcs

Contract Value Calculator

Estimate the annual value of a cleaning contract from monthly or weekly pricing.

Contract Price

Price Basis

How We Calculate This

The calculator converts between per-visit, weekly and monthly pricing to show the full contract value at all intervals.

Weekly × 4.33 = monthly

Weekly × 52 = annual

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always verify quantities and timings for your specific situation.