Chemical Engineering Salary UK: What the Latest ONS Data Shows

If you're considering a career in chemical engineering or negotiating a pay rise, understanding the current chemical engineering salary landscape is essential. The Office for National Statistics (ONS) Annual Survey of Hours and Earnings (ASHE) provides the most authoritative picture, though it's worth noting that ONS does not publish a dedicated 'chemical engineer' category. Instead, chemical engineers fall under the broader group 'Engineering professionals n.e.c.' (not elsewhere classified).

According to the 2025 provisional ASHE data, the median gross annual salary for all employees in this group is £47,985. The mean (average) is slightly higher at £52,921, suggesting that higher earners pull the average up. For full-time employees specifically, the median rises to £48,776. The corresponding median hourly rate (excluding overtime) is £23.92.

These figures place chemical engineering well above the UK median full-time annual earnings of £39,039 (all occupations) and far above the National Living Wage of £12.21 per hour for those aged 21 and over. The top quarter of chemical engineers earn above £61,160, while the bottom quarter earn below £38,739.

Hourly to Annual Conversion: A Practical Guide

When comparing job offers or calculating your worth, converting an hourly rate to an annual salary is straightforward. The standard assumption used by Hourly to Salary is a 37.5-hour working week over 52 weeks. Using this rule:

• Annual salary ≈ hourly rate × 37.5 × 52
• For the median hourly rate of £23.92: £23.92 × 37.5 × 52 = £46,644 (close to the ONS median of £47,985)

If you work a different pattern, adjust accordingly. For example, a 40-hour week would give £23.92 × 40 × 52 = £49,754. Remember that these conversions assume a steady contracted week with no unpaid overtime, bonuses, or salary sacrifice. Always check your contract for your actual hours and any London weighting or shift allowances.

Regional Differences in Chemical Engineering Pay

Location plays a significant role in chemical engineering salaries. ONS data for 2025 (provisional) shows clear regional variation across Great Britain:

Region	Median Annual Salary
London	£56,791
South East	£54,173
East of England	£50,123
West Midlands	£48,401
North West	£47,873
Scotland	£46,487
North East	£45,705
East Midlands	£44,195
Wales	£42,989
South West	£42,883
Yorkshire and The Humber	£41,411

London leads by a substantial margin, reflecting both higher living costs and a concentration of high-value industries such as oil & gas, pharmaceuticals, and process engineering. The South East and East of England also offer above-median pay. In contrast, Yorkshire and The Humber, the South West, and Wales sit at the lower end. If you're considering relocation, these figures can help you benchmark your expectations.

Seniority and Career Progression

Chemical engineering salaries grow significantly with experience and responsibility. While ONS data does not break down by seniority within this occupation, industry surveys and job advertisements suggest:

• Graduate/entry-level: Typically £25,000–£32,000 per year (around £12.80–£16.40 per hour).
• Chartered engineer (3–5 years): £35,000–£50,000 (£17.95–£25.64 per hour).
• Senior/principal engineer: £50,000–£70,000 (£25.64–£35.90 per hour).
• Manager/director: £70,000–£100,000+ (£35.90–£51.28 per hour).

These ranges are indicative; actual pay depends on sector (e.g., oil & gas tends to pay more than environmental engineering), company size, and location. London and the South East typically command a premium of 10–20%.

How the National Living Wage and Tax Affect Take-Home Pay

Even at the median chemical engineering salary of £47,985, you are well above the National Living Wage. For 2025, the NLW for workers aged 21 and over is £12.21 per hour, equating to roughly £23,809.50 per year at 37.5 hours. Your chemical engineering salary is roughly double that.

Income Tax: The Personal Allowance for 2025/26 is £12,570. On £47,985, you'd pay 20% basic rate tax on earnings above that, plus National Insurance contributions. Use the hourly calculator to estimate your net pay.

Key Takeaways

• The median chemical engineering salary in the UK is approximately £47,985 per year or £23.92 per hour.
• Regional variation is significant: London pays around £15,000 more than Yorkshire.
• Seniority can double your earnings from graduate to manager level.
• Always convert hourly rates using your actual contracted hours and check for London weighting or overtime.

For more detailed salary benchmarks across all occupations, visit our salary data page. If you're comparing job offers, our salary articles offer guidance on negotiation and benefits.

Frequently Asked Questions

What is the typical hourly rate for a chemical engineer in the UK?

According to ONS ASHE 2025 data, the median hourly rate for chemical engineers (under 'Engineering professionals n.e.c.') is £23.92 excluding overtime. This translates to an annual salary of roughly £47,985 based on a 37.5-hour week.

How do I convert an hourly chemical engineering rate to an annual salary?

Multiply your hourly rate by the number of contracted hours per week, then by 52. For a standard 37.5-hour week, annual salary ≈ hourly rate × 37.5 × 52. For example, £23.92 × 37.5 × 52 = £46,644 (close to the median). Adjust for your actual hours and any London weighting.

Does a chemical engineer's salary vary significantly by region?

Yes. London offers the highest median at £56,791, while Yorkshire and The Humber has the lowest at £41,411. The South East (£54,173) and East of England (£50,123) also pay above the national median. Regional differences reflect local labour markets and cost of living.