# Maternity Pay Calculator | Clever Mum

> Estimate your Statutory Maternity Pay across the full 39 weeks — 90% of earnings for 6 weeks, then the flat statutory rate — from your gross pay.

*   [ Home ](/) 
*  › [ Tools ](/tools) 
*  ›  Maternity Pay Calculator  
 
   
Free tool

 
# Maternity Pay Calculator

    
 
Quick answer — How does the maternity pay calculator work? 

 
Enter your gross pay and the calculator applies the SMP formula: 90% of your average weekly earnings for the first 6 weeks, then the lower of the flat statutory weekly rate or 90% for the remaining 33 weeks. If you earn under the Lower Earnings Limit it points you to Maternity Allowance instead.

        Your gross pay (before tax)£per weekper monthper year