UK Calculator · 2026 Benchmarks
Workplace wellbeing ROI calculator
Model the financial return of a workplace wellbeing programme using conservative Deloitte, HSE and CIPD benchmarks. Adjust any input — the numbers update live.
Your workforce
Estimated annual return
- Absence saving
- £168,409
- Presenteeism saving
- £421,023
- Attrition saving
- £119,700
- Total annual benefit
- £709,132
- Programme cost
- -£48,000
- Net benefit
- £661,132
- Net ROI
- 1377%
Assumptions used
- Loaded day rate = (salary × 1.25) ÷ 220 working days — covers employer NI and pension.
- Absence reduction = 20% (Deloitte 2024 mid-range for proactive programmes).
- Presenteeism cost = 2.5× absence cost (HSE long-run estimate).
- Attrition replacement cost = 30% of annual salary (Oxford Economics).
- Wellbeing programme reduces regrettable attrition by 15%.
- All figures pre-tax, year-one. Returns compound from year two.
Frequently asked questions
What is the average ROI on workplace wellbeing?
Deloitte's 2024 UK Mental Health Report puts the average return at £4.70 for every £1 spent on workplace mental health, ranging from £4 for early-stage prevention to £8+ for organisational culture work. Physical and financial wellbeing show comparable returns.
How is workplace wellbeing ROI calculated?
ROI = (financial benefit – programme cost) ÷ programme cost. Benefits sum three buckets: reduced absence (sick days × loaded day rate), reduced presenteeism (HSE estimates 2–3× the cost of absence), and reduced attrition (replacement cost is typically 20–50% of annual salary).
What benchmarks does this calculator use?
Deloitte 2024 (UK mental health ROI), HSE annual stress and MSD statistics, CIPD absence-management survey averages, and Oxford Economics replacement-cost research. Numbers are conservative defaults — you can adjust any input.
