On-Call Pay Calculator
Find out what your on-call rotation really pays: standby hours, callback minimums, and how a stipend changes the overtime rate on your week.
On-Call Pay Calculator
Your Rate and Regular Hours
Your normal shifts only. Standby and callback hours go in the fields below.
On-Call Standby
Don't count time you were actually working a callback. That goes in the callback field.
Standby hours should be waiting time only. Subtract the hours you spent working a callback.
Callbacks
You entered callback hours but no callbacks, so the guarantee is figured on one callback.
Total across every callback this week.
Federal law doesn't require a callback minimum. This comes from your contract, union agreement, or state law.
If you just have to be reachable and can otherwise live your life, your standby hours aren't hours worked and don't count toward your 40. Your on-call pay still counts in the regular rate your overtime is built on. (29 CFR 785.17 and 778.223)
Assumes your callbacks were similar lengths. The minimum applies to each callback separately, so if one was much longer than the others you may be owed more.
Your pay works out to less than the federal minimum wage of $7.25 an hour across the hours you worked. If your on-call time is restricted, every one of those hours has to average at least minimum wage, and your state's minimum is probably higher.
Estimates only, based on federal FLSA rules. Your state, contract, or union agreement may require more. This isn't tax or legal advice.
Your stipend is raising your overtime rate
Your on-call pay is part of your regular rate whether or not your standby hours are hours worked. That raises the overtime rate on every hour past 40 this week. Employers who calculate overtime off your base rate alone are underpaying you. (29 CFR 778.223)
Related calculators
Two jobs at two rates? Use the blended overtime calculator. No on-call in the mix? Try the overtime calculator. Night or weekend premium instead? Run the shift differential calculator. Add up your week first with the timesheet calculator.
Track Standby Hours and Callbacks
Log your pages, callbacks, and standby hours alongside your regular shifts. ClockWage44 keeps the kind of record a wage claim needs and works out your pay on-device.
Does your on-call time count as hours worked?
The federal test is short. Under 29 CFR 785.17, an employee who must stay on the employer's premises, or so close by that the time can't be used effectively for personal purposes, is working while on call. Someone who only has to leave word where they can be reached is not.
The Supreme Court framed it in Skidmore v. Swift & Co., 323 U.S. 134 (1944), and the DOL wrote the phrase into 29 CFR 785.14: facts may show the employee was engaged to wait, or they may show the employee waited to be engaged. 29 CFR 785.16(a) adds the other side of it: periods where you're completely relieved from duty, long enough to use the time for your own purposes, aren't hours worked.
No single factor decides it. Score yourself against the ones courts and the DOL actually weigh: how far you may travel from home or the site, how fast you have to respond to a page, how often calls come in, whether you can trade or refuse the rotation, and whether you can realistically sleep, drink a beer, run errands, or take care of your kids.
A hospital biomed tech who has to stay within 20 minutes of the building and gets paged four times a night is engaged to wait. A sysadmin who carries a laptop, can go anywhere with signal, and gets paged twice a month is waiting to be engaged. Getting paid a stipend doesn't settle the question either way: pay is contract, hours worked is law.
How your on-call stipend changes your overtime rate
Here's the part almost nobody computes. Standby pay goes into your FLSA regular rate no matter how the restriction question comes out. 29 CFR 778.223 says on-call pay must be included "in the same manner as any payment for services, such as an attendance bonus, which is not related to any specific hours of work." The standby hours only enter the denominator when you're engaged to wait (29 CFR 785.17). Pay in, hours conditional.
Take a $22/hr worker with 44 regular hours, an unrestricted 72-hour rotation paying a $150 stipend, and one 2-hour callback. Straight-time pay is $968 plus $150 plus $44, which is $1,162. Hours worked are 44 plus 0 plus 2, which is 46. The regular rate is $1,162 / 46 = $25.2609/hr, so the premium on six overtime hours is 0.5 x $25.2609 x 6 = $75.78.
An employer who runs overtime off the bare $22 base rate pays 0.5 x $22 x 6 = $66.00. That's $9.78 short on a single week, roughly $500 a year on a weekly rotation, and it's the single most common on-call underpayment.
It cuts the other way too. Restricted standby paid below your base rate drags the regular rate down: 32 regular hours at $20 plus 12 restricted standby hours at $8 is $736 over 44 hours, a $16.7273 regular rate. Those 12 hours created four overtime hours that wouldn't otherwise exist, and they're priced at $16.73, not $20. Both results follow from 29 CFR 778.109.
Callback pay, minimum guarantees, and what they're really worth
Callback pay is triggered when your scheduled hours have ended and, without prearrangement, you respond to a call to perform extra work (29 CFR 778.221). The 2-hour and 4-hour minimum guarantees that hospitals, utilities, and public-sector employers use are contractual, not statutory.
The counterintuitive part is what happens to guarantee hours you never worked. Under 778.221, the amount by which the guaranteed pay exceeds compensation for hours actually worked is a payment not made for hours worked. You get the money, but those hours don't count toward 40 and the money stays out of the regular rate.
Three callbacks totaling 1.5 hours under a 2-hour minimum pay six hours. Hours worked still go up by 1.5, not 6. On a 40-hour week at $30/hr with a $150 standby total, that's 41.5 hours worked, a $33.6145 regular rate, 1.5 overtime hours, and a $135.00 guarantee top-up on the side. Count the guarantee hours as worked and you'd wrongly report 46 hours and six hours of overtime.
Two limits. The exclusion only holds where the callback wasn't prearranged: a call-in that happens every Saturday like clockwork is scheduled work, and its guarantee pay goes back into the regular rate. And contractual callback premiums, like time-and-a-half per callback under a union agreement, sit on top of everything here. This calculator computes the federal floor.
What your rotation actually pays per hour
The stipend headline is not the number that matters. In the example above, 74 hours of your week were committed to the rotation (72 waiting, 2 working) for $194 of rotation earnings. That's $2.62 an hour, about 11.9% of a $22 base rate.
The restricted rotation, by contrast, paid $96 for 12 hours: $8.00 an hour, 40% of the base rate. That single figure, not the size of the stipend, is how to compare two rotations or decide whether volunteering for one is worth it. The results panel keeps it separate from the FLSA regular rate, because the two are computed over different denominators and answer different questions.
State rules can raise the floor. California treats controlled standby as compensable more readily than the FLSA does and adds reporting-time pay through its Wage Orders. Check your state labor agency before assuming the federal answer is the whole answer.
Last thing: keep records. Log your standby hours, every page, and every callback with start and end times, because a wage claim lives or dies on contemporaneous records. You can track standby hours and callbacks alongside your shifts in ClockWage44. If your callback log is in hours and minutes, the decimal hours converter turns it into the decimal hours this tool expects, and the take-home pay calculator handles the question this one deliberately skips: what's left after tax.
Frequently Asked Questions
Common questions about on-call pay calculator
Do I have to be paid for being on call?
Only if you're actually working while you wait. Under 29 CFR 785.17, you're working while on call if you have to stay on your employer's premises, or so close by that you can't use the time for your own purposes. If you just have to keep your phone on and can otherwise get on with your life, that time isn't hours worked and federal law doesn't require pay for it. Plenty of employers pay a stipend anyway: that's contract, not statute.
What's the difference between "engaged to wait" and "waiting to be engaged"?
It's the line the Supreme Court drew in Skidmore v. Swift & Co., 323 U.S. 134 (1944), and the DOL wrote straight into 29 CFR 785.14: "Facts may show that the employee was engaged to wait or they may show that he waited to be engaged." Engaged to wait means the waiting is part of the job and gets paid. Waiting to be engaged means you're genuinely off duty. Courts weigh how far you can travel, how fast you have to respond, how often you actually get called, whether you can swap the shift, and whether you can realistically sleep, drink, or leave the house.
Does on-call time count toward my 40 hours for overtime?
Restricted on-call time does. Those are hours worked, and they stack onto your weekly total exactly like regular shift hours: 12 restricted standby hours turn a 32-hour week into a 44-hour one. Unrestricted on-call time doesn't count toward the 40 at all. Time you spend actually working a callback always counts, restricted or not.
Does my on-call stipend change my overtime rate?
Yes, and this is the part employers get wrong. On-call pay is remuneration for employment, so it goes into your FLSA regular rate whether or not the standby hours themselves are hours worked. 29 CFR 778.223 says it must be included "in the same manner as any payment for services, such as an attendance bonus, which is not related to any specific hours of work." A $150 stipend on a 46-hour week at $22/hr lifts your regular rate to $25.26 and your overtime premium from $66.00 to $75.78.
What is callback pay, and is a 2-hour minimum required?
Callback pay is what you get when you're called in after your scheduled hours have ended, without prearrangement (29 CFR 778.221). The 2-hour and 4-hour minimum guarantees are real and common, used by hospitals, utilities, public-sector employers, and union contracts, but no federal law requires them. They come from your contract, your union agreement, or state law.
If I'm guaranteed 3 hours but only work 1, do the other 2 hours count as work?
No. Under 29 CFR 778.221, the amount by which the guarantee exceeds pay for hours actually worked "is considered as a payment that is not made for hours worked." You get paid for it, but it doesn't push you toward 40 hours and it doesn't go into your regular rate. One caveat: the exclusion only applies where the callback wasn't prearranged. If you're called back every Saturday like clockwork, that's scheduled work, and the guarantee pay goes back into the regular rate.
Can my employer pay a lower rate for on-call hours than for regular work?
Yes, as long as your pay for the workweek averages at least the applicable minimum wage across all your hours worked: $7.25/hr federally, and higher in most states. But a lower standby rate doesn't let your employer compute overtime off your base rate. Your regular rate is total straight-time pay divided by total hours worked, which is often lower than your base rate when cheap standby hours are in the mix ($16.73 rather than $20 in the restricted-standby example on this page). For two jobs at two rates instead, use the blended overtime calculator.
Are the rules different in my state?
Often yes, and state law wins where it's more generous. California treats "controlled standby" as compensable more readily than the FLSA does, and its Wage Orders add reporting-time pay (generally half your scheduled shift, with a two-hour floor and a four-hour ceiling) when you report and get sent home, plus a separate two-hour minimum when you're called in a second time in one day. This calculator runs the federal floor only.