Free UK Business Operations Calculators 2026
Stock ordering (EOQ), delivery pricing, staff scheduling, warehouse costs, fleet management and office space — updated for 2025/26 UK rates. Free to use, no account needed.
Economic Order Quantity (EOQ) Calculator
Optimal stock order quantity to minimise total ordering and holding costs — EOQ formula.
Delivery Pricing Calculator
Set profitable delivery charges based on distance, weight, vehicle cost and target margin.
Staff Scheduling Cost Calculator
Weekly staff cost optimisation — shift patterns, NLW compliance, overtime and agency cost.
Warehouse Cost Per Unit Calculator
Full cost per unit stored — rent, rates, handling, insurance and labour.
Fleet Management Cost Calculator
Total cost of ownership per vehicle — depreciation, fuel, insurance, maintenance and finance.
Office Cost Per Desk Calculator
Cost per desk in office space — rent, rates, service charge, furniture and utilities.
Make vs Buy Analysis Calculator
Should you make a component in-house or outsource? Compare total cost at different volumes.
Retail Shrinkage Cost Calculator
Annual cost of inventory shrinkage — customer theft, employee theft, admin errors.
Print Run Unit Cost Calculator
Cost per unit for print jobs at different quantities — the volume discount breakeven.
Call Centre Cost Per Call Calculator
Fully loaded cost per call — agent salary, supervisor, technology, occupancy and quality.
UK Business Operations Cost Benchmarks 2025/26
Operations management in 2025/26 is shaped by higher staffing costs (NLW £12.21/hr, employer NI at 15% from April 2025), rising property costs and increasing automation pressure. Inventory management, delivery cost modelling and office space optimisation are critical tools for maintaining margins. These calculators use UK-specific benchmarks — London office rates, HMRC mileage rates, UK fuel prices and NLW compliance — to help operations managers, business owners and finance teams make evidence-based decisions.
Frequently Asked Questions
- What is Economic Order Quantity (EOQ)?
- EOQ is the optimal order size that minimises total inventory costs — the sum of ordering costs and holding costs. The Wilson formula is EOQ = √(2DS/H) where D is annual demand, S is cost per order and H is annual holding cost per unit. At the EOQ point, ordering cost equals holding cost.
- What is a typical retail shrinkage rate in the UK?
- UK retail shrinkage averages 1.2-1.8% of annual revenue according to the British Retail Consortium. Food retail typically sees higher rates (1.5-2.5%) due to perishability and self-service formats. Customer theft (external shrinkage) accounts for approximately 50-60% of retail loss; employee theft 25-30%; administrative errors and supplier fraud make up the remainder.
- How much does a desk cost per year in a UK office?
- Central London: £8,000-£15,000 per desk per year including rent, rates, service charge and utilities. Regional cities (Manchester, Leeds, Bristol): £3,000-£6,000 per desk. Business parks and out-of-town offices: £1,500-£3,500. Hybrid working models (60-70% desk ratio vs headcount) can reduce effective cost per employee significantly.
- What is a typical call centre cost per call in the UK?
- UK inbound call centre cost per call: £4-£8 fully loaded (agent salary, NI, pension, supervisor, technology, occupancy). Simple transactional calls (order status, balance enquiries) handled by trained agents: £3-£5. Complex calls requiring specialist knowledge: £8-£15. Offshore outsourcing can reduce per-call costs to £1-£3 but introduces quality and compliance risks.