Recruiting KPIs reveal what really works in the hiring process and where potential is being lost. In over 10 years of working with more than 250 clients, we’ve seen one thing time and again: Depending on the role, a vacant position costs between €500 and €900 per day.
Those who know the right KPIs and manage them consistently can measurably reduce these costs.
Contents
Key Points at a Glance
- Recruiting KPIs make it possible to measure and manage time, costs, and quality in the hiring process.
- The 7 most important metrics: time-to-hire, cost-per-hire, quality-of-hire, offer acceptance rate, channel effectiveness, candidate experience, and retention rate. Depending on the stage the company is in or the goals it is pursuing, other KPIs may also become more important.
- The average time-to-hire in Germany is 40 to 45 days; Kooku projects take an average of 28 days.
- An unfilled position can cost between 500 and 900 euros per day, depending on the role. Effective KPI management measurably reduces these costs.
- Five to seven KPIs is the optimal range; ideally, they should be reviewed weekly.
All 7 KPIs at a glance
| KPI | What is measured | Benchmark Germany | Warning signal |
|---|---|---|---|
| Time-to-hire | Duration from job advertisement to contract signing | 40-45 days | over 60 days |
| Cost-per-hire | Total costs per successful hire | 4.200-5.800 € | over 8.000 € |
| Quality of Hire | Performance & retention of new employees after 12 months | Performance score > 80 % | below 60 |
| Offer acceptance rate | Percentage of accepted job offers | 85-90 % | below 75 % |
| Channel Effectiveness | Efficiency and ROI of individual recruiting channels | Channel-dependent | No channel data available |
| Candidate Experience | Candidate satisfaction throughout the entire process (NPS) | NPS > 30 | NPS below 0 |
| Retention rate | Percentage of employees still with the company after 12 months | > 85 % | under 70 % |
| Sources: DGFP/Wollmilchsau Recruiting Benchmark 2025 (736 companies), Kooku project data 2023-2025 | |||
What are recruiting KPIs?
A recruiting KPI (Key Performance Indicator) is a measurable metric that evaluates the success or efficiency of a specific step in the hiring process, from the job posting to successful onboarding.
Recruiting KPIs translate an otherwise elusive process into concrete numbers: How long does it take to fill a position, what does it cost, and how well do the new hires fit in over the long term? Those who understand these metrics can manage their recruiting based on data rather than gut instinct.
Why are recruiting KPIs crucial?
Last updated: June 2026 | Sources: DGFP/Wollmilchsau Recruiting Benchmark 2025, Kooku project data 2023–2025
Recruiting KPIs give you valuable insights into the success of your recruiting measures. They answer key questions such as:
- How efficient is your recruiting process?
- Where are optimizations possible?
- How do recruiting metrics vary across industries and positions?
Through continuous measurement and analysis, you can address specific weaknesses and optimize your recruiting strategy. Simple examples quickly illustrate just how valuable recruiting KPIs really are:
You’ll stop money from going to waste. If your channel effectiveness metrics show that an expensive job board is barely generating any suitable applications, while active sourcing delivers better candidates, you’ll shift your budget to where it’s most effective. Without this data, you’ll keep paying for a channel that isn’t delivering results.
You’ll spot process bottlenecks before they become costly. If your time-to-hire increases from 30 to 50 days, that’s an early warning sign. With vacancy costs ranging from 500 to 900 euros per day, each additional week quickly adds up to four-figure amounts that you can recoup at a single point in the process.
To the point: What are the 7 most important recruiting KPIs?
These are the 7 KPIs that we have identified as key success factors in over 10 years of agency work:
1. time-to-hire
The time-to-hire measures the duration from job release to contract signing.
Industry average in Germany: 40–45 days (2025 Recruiting Benchmark by DGFP, HTWK Leipzig, and Wollmilchsau, based on a survey of over 700 HR professionals). Tech companies often achieve 28–33 days. Kooku projects average 28 days.
Optimization tips: Use automated applicant management systems like Workable or Recruitee to speed up the process.
2. cost-per-hire
The cost-per-hire indicates how much you invest on average to fill a position.
German industry average: €4,200–5,800, depending on the industry and level of seniority (2025 Recruiting Benchmark by DGFP, HTWK Leipzig, and Wollmilchsau). Salaries for tech and finance positions are significantly higher.
Optimization tips: Use efficient recruiting channels such as employee referrals and active sourcing.
3. quality of hire
The quality of the employees hired shows how well new employees perform in the company in the long term.
Measurement: Performance score after 6 months + retention after 12 months + manager assessment. Target value: > 80 % in all three dimensions.
Optimization tips: Create precise requirement profiles and use structured interview methods.
4. offer acceptance rate
This recruiting KPI measures how many candidates accept an offer.
Benchmark: 85-90% (Kooku projects 2023-2025). If your rate is below 75%, this is a warning signal for salary or process problems.
Optimization tips: Ensure attractive compensation packages and an outstanding candidate experience.
5. channel effectiveness
This key figure shows the efficiency of individual recruiting channels.
Optimization tips: Regularly analyze the performance of different channels and focus on the most effective ones.
6. candidate experience
This recruiting KPI can be recorded by an automated survey during or after the application process (e.g. with tools such as SurveyMonkey or LamaPoll as an NPS score) and provides information about the applicants’ satisfaction with the recruiting process.
Optimization tips: Transparent communication, quick feedback and personal contact throughout the entire process.
7. retention rate
The percentage of employees who are still with the company after a defined period of time. The standard is the 12-month retention rate. Benchmark: over 85% in healthy companies. A rate below 70% indicates structural onboarding issues.
Optimization tips: Improve onboarding processes and hold regular feedback meetings.
Want to know how your recruiting KPIs compare to the market? We’ll take a look together – free of charge, in 30 minutes.
How the consideration of recruiting KPIs helps in practice – Best Practices & Case Studies by Kooku
Some of our selected projects show how important it is to monitor and track KPIs:
Aedifion: Increased efficiency through targeted recruiting KPIs
Aedifion quickly needed qualified employees in the sales area. Using targeted KPIs such as time-to-hire, cost-per-hire and offer acceptance rate, we were able to optimize the process:
Time-to-hire was reduced from 45 to 28 days.
Cost-per-hire fell by 20 % thanks to the targeted use of successful channels.
The offer-acceptance rate rose to 85%.
doctor’s consultation: A recruitment strategy focused on KPIs
For arztkonsultation, we developed a long-term strategy with continuous KPI analysis:
Retention rate increased to 90 % thanks to improved onboarding.
Quality of Hire was 95% after six months, as measured by performance reviews.
Channel effectiveness showed a 30% higher quality of applicants thanks to targeted channel selection.
askDANTE: Successful social recruiting with KPIs
askDANTE relied on social recruiting and was able to achieve clear success through KPIs:
Response rate rose to 40 %.
Conversion rate increased to 25 %.
Candidate Engagement noticeably improved the candidate experience.
GASAG Group: Interim Recruiting efficiently organized
By focusing on KPIs, the GASAG Group was able to act quickly and efficiently:
Time-to-hire was only 25 days.
Cost-per-hire was reduced by 15 %.
Candidate experience improved by 30%, resulting in higher applicant satisfaction.
LIfBi: Targeting and recruiting specialists
The Leibniz Institute for Educational Trajectories (LIfBi) was faced with the challenge of filling complex IT roles:
Time-to-hire was reduced to 35 days despite high requirements.
Quality of Hire ensured strong employee retention.
Offer acceptance rate reached an impressive 90 % thanks to targeted individual approach.
Bonus: Our 3 most important recruiting KPIs for active sourcing
Active sourcing requires more specific, operational KPIs that can be monitored directly in order to effectively manage the outreach process.
Response rate: Proportion of candidates who respond to your approach. A strong response rate is over 30%.
Conversion rate: Proportion of candidates who actually proceed to the recruitment process after the first contact.
Candidate engagement: Intensity of interactions and quality of relationships during active sourcing.
For specific optimization strategies, we recommend downloading our Active Sourcing Bible (click here to download for free) with practical tips and tricks from our day-to-day agency work.
Tools and technologies in recruiting KPI management
Our Kooku Recruiting Dashboard enables the precise tracking of operational KPIs in real time so that we can fine-tune projects optimally. It offers:
- Weekly KPI reports
- Early identification of optimization potential
- Transparent, data-based collaboration
More about KPI-based recruiting consulting: Recruiting Consulting & KPI Consulting by Kooku – or download the free KPI dashboard template directly.
As an ATS we use Workable (good for agencies), but Recruitee / Tellent we can always recommend to our clients due to its easy setup and excellent clarity. For an initial consultation on the candidate management system, we recommend our completely free mini-workshop“Recruiting Health Check”
Recruiting KPIs in an industry comparison
Recruiting KPIs vary widely across industries such as tech, sales, marketing, finance, and engineering. Tech companies often focus on speed and candidate engagement, while finance positions are particularly geared toward maintaining strong employee retention.
If you would like to know how your open positions are rated, take the free online applicant market check here.
Conclusion & recommendations for action
Recruiting KPIs are the key to effective and sustainable recruiting. Use these KPIs consistently to eliminate weaknesses and continuously improve processes. Recruiting KPIs only unfold their value when they are interpreted correctly.
Our team will help you to define the 5-7 most important KPIs for your process and translate them into a functioning reporting system.
Efficient recruiting with results.
Active Sourcing at Kooku
We find the right candidates for your open positions.
With a clear process, suitable search strategies and measurable key figures, we increase the response rate and shorten the time to fill. We develop an individual sourcing strategy for each position, tailored to your market and your recruiting goal.
Active sourcing from Kooku. Efficient. Personal. Successful.
View Kooku's Active Sourcing ServiceFAQ: Frequently asked questions about recruiting KPIs
Here are a few quick answers to questions you may have about getting started with KPI-driven recruiting:
When getting started with data-driven recruitment, time-to-hire, cost-per-hire and channel effectiveness are particularly important. These recruiting KPIs provide the first clear insights into the efficiency of your processes and help you prioritize measures.
Recruiting efficiency can be improved by regularly analyzing KPIs such as time-to-hire, response rate and candidate engagement. This allows you to identify where processes are faltering and to implement targeted automation or optimized communication steps.
The optimum number of KPIs for recruiting is around 5-7 key figures. Too many values lead to a lack of transparency, while a focused selection – e.g. of time-to-hire, quality-of-hire and offer acceptance rate – provides a clear overview of your recruiting efficiency. It is important to select good tools that can also monitor these KPIs.
For tech roles, the response rate to direct outreach is often a critical factor, whereas in sales, the focus is on the no-show rate for interviews and cultural fit. Recruiting KPIs must therefore be interpreted and weighted on an industry-specific basis.
Candidate engagement is an underestimated but central recruiting KPI – especially in active sourcing. It shows how intensively candidates interact with your process – and how well you have understood their needs.
To collect and evaluate your recruiting KPIs, you should definitely use a suitable ATS for your company such as Recruitee (simple and clear), Workable (comprehensive and proven) or individual dashboards such as the one developed by Kooku, which is specially tailored to operational KPIs.
Recruiting KPIs should be reviewed at least monthly, but ideally weekly, and included in the management process – especially in the direct approach. This allows you to react quickly to changes, identify bottlenecks and continuously improve recruiting efficiency.
In Germany, a good time-to-hire figure ranges from 28 to 35 days. According to the 2025 Recruiting Benchmark by DGFP, HTWK Leipzig, and Wollmilchsau, the industry average is 40–45 days. Tech companies often achieve 28–33 days, while Kooku projects average 28 days.
If your time-to-hire is over 60 days, you will usually lose the best candidates to faster competitors – experience shows that top talent only has an application window of 10-14 days before they accept another offer.
Quality of hire measures how well new employees perform in the company and how long they stay. The most common measurement method combines three factors: performance score after 6 and 12 months (from manager reviews), ramp-up time (how quickly is the target achieved?) and retention (is the person still with the company after 12 months?).
A benchmark: A performance score above 80 % after 12 months is considered a good value. Below 60 % is a warning signal for errors in the matching or interview process.
For start-ups, 3-4 KPIs are initially recommended: time-to-hire (growth phases require quick appointments), offer acceptance rate (shows whether salary and employer brand are competitive), quality-of-hire (early bad appointments are particularly damaging in small teams) and channel effectiveness (only the high-performing channels scale).
Cost-per-hire and retention rate make sense to add from a team size of approx. 20-30 employees, if enough data points are available.
Time-to-hire and cost-per-hire are directly linked: The longer a position is open, the higher the costs – due to vacancy costs (€500-900 per day depending on the role), additional agency fees or more ad placements.
The best control is therefore always achieved through the interaction of both KPIs – supplemented by the quality of hire to ensure that speed and costs are not at the expense of staffing quality.
Practice shows: 5-7 KPIs are the optimal framework. Experience shows that fewer than 5 provide too little management information, while more than 7 mean that no KPI is really tracked consistently.
More important than the number is selecting the right KPIs for your specific process and your current growth phase.
Time-to-fill measures the period from the internal approval of the position to the signing of the contract – i.e. including internal coordination. Time-to-hire measures the period from the first application or the first candidate contact – i.e. the efficiency of the active recruiting process.
Time-to-hire is more relevant for operational management. Time-to-fill is more suitable for strategic personnel planning.
