Other than taxes and 5% for retirement, he has no deductions. Insurance and FSA, etc all comes from my check.

Insufficient data for meaningful answer.

Try Paycheck City. If he's salaried, he probably makes the same amount each check regardless of days worked.

If Gross is 9K a month, then Gross is 108 a year...

With assumptions of you live in DC, and claim married with 1 exemption with 10% coming out pre-tax... I get 2826.60, so I bet the $2477 per semi-month is right if things like health care and higher retirement is coming out...

You need to look at the deductions on his paycheck. Figure out which ones are a percentage and which are a flat rate (perhaps prorated), and then reapply to the gross salary.

Is there any reason you need to know this right now instead of just waiting for his next check?

DH just started a new job. He gets paid twice a month. He started on May 6 and on May 15 got his first check for $2477. Any help figuring out what he would have made in a full paycheck? I tried dividing $2477 by 10 days and then multiplying that by 15 days, but $3715 seems too high, considering its almost $1000 more than his last check but his new salary is not that much higher. Am I doing it right? Gross salary is $9K a month.