How to transfer video from nikon camera to iphone 5?

So i took a video with my nikon amd would like to put it on instagram. I know how to put the video onto my laptop but then i don't know how to transfer it to the iphone? Help please! Will be choosing a best answer x

ITunes. Put the video in iTunes & then sync it to the iPhone & from there you could upload it to Instagram. Has to be in an iTunes accepted format of course.

Firstly, copy videos from Nikon camera to laptop(you know how to do it). Then install and run iPhone Transfer(a third-party program), connect your iPhone 5 to laptop. After that, Click "Movies" on the display list, then the right side of the interface will display all your video files in details. Click "Import files" image button on the bottom of the interface to import one or multiple video files from PC to your iPhone. Then the imported files will be displayed below the previous movie files.

You need to download video from Nikon to laptopn, then convert video to iTunes mpeg-4 file, then plug your iphone to laptop and sync. You may need the video converter below
http://www.videoconvertermatter.com/ipad-air-video-converter-convert-avimpgmp4mtsflv-to-ipad-air-video.html

If your video is already mp4 video, you can import the mp4 video into iTunes at first. Connect your iPhone to computer through USB cable, iTunes will recognize the iPhone automatically, and then go to iTunes menu 'File -> Sync iPhone', the video will be transferred to iPhone.
If your video is not iPhone compatible mp4 video, you can follow this step by step guide to convert and sync the video to your iPhone, it's easy to understand and works pretty well for me.