Lead Response Time Calculator

Track every lead from capture to reply fast. Set working hours, SLAs, and priority weights. Turn response data into consistent follow-up habits for growth.

Calculator Inputs

Advanced settings included for realistic CRM operations.
Batch mode calculates averages, medians, and percentiles.
Use an IANA zone, for example: Europe/London.
Business hours ignore off-hours and holidays.
Set 0 to disable SLA evaluation.
Priority can scale the weighted minutes.
Example: VIP 1.5 increases impact by 50%.
Used only for business-hours method.
These dates are excluded from business hours.
One record per line: created_datetime, responded_datetime. You can use YYYY-MM-DD HH:MM or any parseable format.
Reset

Example Data Table

Use this as a template for batch rows or CRM exports.

Lead ID Lead Created First Response Response (min) Owner Channel
L-1042 2026-03-01 09:00 2026-03-01 09:12 12 Ayesha Web form
L-1043 2026-03-01 10:10 2026-03-01 10:45 35 Bilal Chat
L-1044 2026-03-01 11:30 2026-03-01 12:05 35 Sara Email

Formula Used

Calendar time
Response Minutes = (First Response Timestamp − Lead Created Timestamp) ÷ 60
Counts every minute, including nights, weekends, and holidays.
Business-hours time
Response Minutes = Σ overlap minutes within working windows
For each day, the calculator adds only the overlap between the lead interval and your configured working hours. Non-working days and listed holidays are excluded.
Weighted minutes
Weighted Minutes = Response Minutes × Priority Weight
Useful when VIP or paid leads should influence averages more strongly.

How to Use This Calculator

  1. Select Single lead for one record, or Batch for many.
  2. Choose Calendar if you measure 24/7 speed.
  3. Choose Business hours to ignore off-hours time.
  4. Set an SLA in minutes to track compliance.
  5. Optional: add holidays and adjust working days.
  6. Press Submit to see results above the form.

Saved Run History

Download CSV

Each submission is stored in your session for quick export.

Run At Mode Method SLA (min) Records Avg (min) Median P90 SLA Met %
No history yet. Submit the form to generate results.
Tip: Use Batch mode to evaluate a whole pipeline stage.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.