how can I connect a tv box with Hdmi output to an old tv with coaxial input?

[oldtv86]

The new modern tv box receives the tv signal from a modem/wifi.
The output to tv on the box is via hdmi or USB.
The tv is old, it now receives tv signal from a coaxial cable.
Is a converter from HDMI to coaxial cable exists?

 

[Hlsgsz]

Look for other inputs on your TV. Coaxial is not used for this. Most likely there will be SCART input, and i think its best to ask your provider for a box that has a scart output.

 

[popatim]

If the tv is old then there very well may not be another input method and likely the tv is limited to 640x480 resolution.
But sadly, a new tv would be much cheaper then an hdmi to analog coax converter box (about 400 bucks) for an all-in-one solution or spend about $70 bucks for a two piece solution ('HDMI to Composite' and then 'Composite to RF')
http/www.amazon.com/ViewHD-Composite-Converter-Include-Adapter/dp/B00LK95VNQ
http/www.walmart.com/ip/RCA-CRF907-Compact-RF-Modulator/19415715

With dropping to 640x480 resolution, IMO, $70 is better invested in a new tv; one with HDMI inputs.
Cheers

 

[Emerald]

does the TV have Composite Input (RCA)?