The drone flight time calculator is a simple tool that takes into account two parameters. COVID-19 Update: Flying Tech is open and shipping daily, however our phone support is limited so please email us if possible. To convert from mAh to Ah, divide by 1000. We will use the below formula. Discharge: LiPo batteries can be permanently damaged if they are fully discharged. We recommend: If you would like to learn more about how to achieve a longer flight time, then a good place to start is our previous blog post - efficiency vs. performance. A heavy drone with a smaller battery will have shorter flight time compared to a lighter drone with a relatively bigger battery. Battery Capacity (C) = The capacity of the battery is its ability to store electric charges. Install. This Drone flight time calculator will help you accurately calculate your time in the air. Note: If you use mAh as a Capacity unit and Kg as your unit of weight, you will get the time in Hours. One of the main considerations when building or buying a drone is flight time. Whatever it may be, you will find this app useful. Before going into the formula to calculate the flight time, let’s defined a few variables that we will be using. Are you shortlisting components for your next drone build? The output voltage is always written on the bottom of the battery, and it remains fixed for the most part of the battery operations (it plummets greatly when the battery discharges below a certain point, see battery discharge profile chart). It includes the weight of the drone itself, any added accessories, and most importantly the battery. Specialist in Multirotor Tech & FPV Equipment. Power to Weight ratio (P) = We use ‘P’ to describe how much power the motors need to lift one unit of weight. This higher current draw will reduce flight time, so you should bear this in mind when thinking about the calculated flight time. It is basically a parameter that depends on how efficient the motors are. In practice, loads change as you might want to add additional gears to your drone (prop guards, extra battery, bigger camera, etc.). Please note shipment times may take longer than normal as postal services are operating with fewer staff. Our simple flight time calculator isn’t designed to accurately predict flight time down to the second, but it should help you to quickly get a ballpark idea of what you can expect from your setup. The flight time calculator requires the value to be given in Ah (amp hours). Depending on how hard you are flying, FPV racing can take 3 to 4 times as much current as stable hovering does. The idea is to work out how many amps your multirotor will draw to maintain a stable hover (note we are taking a stable hover to represent average flight). In some cases, it can cut the flying time by as much as 50%! A simple app to help vendors/sellers manage payments they are yet to receive. In such situations, you might want to re-calculate your drone battery life or flight time. The greater the number, the more energy the battery stores. For this calculator, we will measure it in Amperes. Are you shortlisting components for your next drone build? I am the founder of FTD. If you find this calculator useful, please feel free to share it with your friends. Battery Capacity: This value can usually be found printed on your battery. Fly Without Crashing, Propel Snap 2.0 Drone Review – Compact Folding Drone With HD Camera, Top 10 Best FPV Racing Drone Kit With Goggles – Your Intro to Drone Racing in 2020, Holy Stone HS100 Review – Great camera drone with an affordable price tag for beginners, Ryze Tello Drone Review – Intel & DJI just had a baby & its cute, How far can a drone travel? Total Flight Weight (TFW) = TFW is the weight of the drone just before take-off. It makes perfect sense because drones with higher flight times give you more time in the air hence extend its usability. For example, enter 2.2Ah for a 2200mAh battery. For this calculator, we will be measuring it in Kg. Input your drone specs to get accurate flight time. 8 Ways to Increase Your Recovery Chances, What Is Headless Mode On A Drone? Whenever you do any maneuvering, other than a controlled steady hover in calm air, one or more of the motors will have to spin faster, and thus pull more current. Brushless motors have a value between 80 & 120 watts per kg and Brushed motors have a higher value of around 150 – 180 watts per kg. Yet, although it’s such an important factor, it’s actually quite hard to calculate. 25. In respect of this, it's common practice to not discharge your LiPo batteries below 20% mAh during flight; this is known as the '80% rule'. Or do you want to have a better idea about the drone you're about to buy? Or do you just want to estimate how well the drone you're making will fly? It is painful to lose your drone just because you ran out of battery without warning especially with most DIY self-assembled drones that lack sophisticated battery monitoring systems. Or do you want to have a better idea about the drone you're about to buy? Average Amp Draw: To work out the value for average amp draw, you’ll need to know the all up weight (AUW) of your drone and relate this to thrust and amp values found in the datasheet for your motor/prop configuration. The tool below is a simple calculator I put together to calculate the flight time using average current draw under actual load (total weight of the drone before takeoff) and your battery capacity and takes into account what kind of motors you are using (brushed or brushless). Writing about drones helps me keep in touch with the hobby I love. If each motor draws 4amps to produce 500g of thrust, then your average current draw will be 16amps. Everyone. Shlok Jhawar Tools. The content of this field is kept private and will not be shown publicly. If you have any suggestions, you can reach out to me at ahmed (at) You can learn more about our editorial and affiliate policy here. You can change the value using the slider. For example, if your quadcopter has an AUW of 2kg, each motor will have to produce 500g of thrust in order to hover. To take into account the variations, we use the average value. A simple text-to-speech converter - you type, your device speaks. Battery Discharge Margin (BDM) = It is highly recommended that the battery should never be discharged completely. Whatever it may be, you will find this app useful. If you would like to more accurately model your multirotor setup and evaluate lots more parameters, there are other, more technical web-based flight time calculators. To represent this in the flight time calculator enter the value 80% in the discharge field. Doing so will not only lessen its life, but it also puts your drone at risk of falling out of the sky dead if the battery suddenly plummets. Please note shipment times may take longer than normal as postal services are operating with fewer staff. Thanks to all of our customers for their support at this difficult time and stay safe. Drone flight time varies with manufacturer, model as well as your battery condition. Finally, if you are involved in FPV racing, and are flying at high throttle levels, your flight times will degrade dramatically. Do note that the battery size is measured in terms of its capacity (Ampare-hours) and not its size. Drone Flight Time Calculator COVID-19 Update: Flying Tech is open and shipping daily, however our phone support is limited so please email us if possible. Flying in a strong cross wind can also have a huge effect on the current draw of the motors. For aerial photography work, where there is minimal moving around, you should start with about 75% of the calculated flight time. Average Current Draw (ACD) = ACD is the average current all the motors draw from the battery. Web page addresses and e-mail addresses turn into links automatically. Just multiply your answer with 60 to convert it to Minutes. Below I have explained how this calculator calculates the flight time in detail for those interested in the technical details. Flight time is one of the first and most important parameters you check for before buying a drone. The simplest bluetooth terminal for Bluetooth-based DIY projects. I have been designing, building and flying my own drones since I was in college. The battery capacity is also written on the pack and is denoted in milliampere-hour (mAh). Achieve total operational awareness all season long with Taranis. Or do you just want to estimate how well the drone you're making will fly? In the calculator above, I have assumed the following values; Brusheless motors = 100 W/kg, Brushed motors = 170 W/kg, Battery Pack Voltage (V) = The total voltage of the battery pack depends on the cells’ series configuration. The more efficient the motors are, the less power it needs to lift 1 kg of weight. 5 Tips to increase drone range. Simple but accurate drone flight time calculator to accurately calculate your drone flight time in the air. Add to Wishlist. RedWaypoint PRO for DJI (Mavic Mini compatible), Cookies help us deliver our services. Obviously this is a very simplistic calculator as it doesn’t take into account numerous factors, among them flying styling and weather conditions. Lines and paragraphs break automatically. Most manufacturers advertise the flight time in their drone specs, but these are not always accurate because these timings are under standard load and lab conditions. First, we are going to calculate the average current the motors will be drawing from the battery to support a the total weight. If you want to say 'hi', you can can find me on twitter handle @ahmednabik, DJI Mavic Mini 2 Review – Perfect Size For the Perfect Price, How To Find A Lost Drone Without A Tracker? Normally the value will be given in mAh (milliamp hours). Flying Tech's New Website - What Would You Most Like To See? Once we have the average current, we will just divide the total available capacity ( C) of the battery by that current and we will have the flight time in hours. Receive our weekly newsletter about latest happenings in the world of drones, discounts, new releases, contests and much more! I have a degree in Mechanical Engineering and have a passion for rotary and fixed-wing drones. Plan your flight, fly autonomously, focus on recording your videos. Affiliate Disclosure: As an Amazon Associate, we may earn commissions from qualifying purchases from We use average because the actual current draw varies greatly during different flight stages and depends on the mode of operation (full throttle flight draws more current than mellow flying). A higher capacity battery will be able to provide continuous electric energy for a longer time. For this calculator, I have put a default value of 80% which means, we will only use the 80% of the total capacity to calculate the flight time and keep 20% as a safety margin. Drone Flight Time Calculator. I have tested this calculator on a few drones that I got the opportunity to fly and found this quite accurate. The calculator requires input values for: battery capacity (Ah), discharge (%) and average amp draw (A). Receive our weekly newsletter about latest happenings in the world of drones, discounts, new releases, contests and much more! 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