Interactive calculators

Home theater planning tools

Use these tools as practical starting points before you buy, drill, mount, or run wire. The results are approximate, but they keep the setup grounded in real room dimensions and common home theater placement ranges.

Best uses

Planning a first 3.1 or 5.1 system before buying speakers.
Checking whether a TV size and mount height will be comfortable.
Estimating speaker angles, wall clearances, and wire length.
Preparing for Atmos ceiling speakers without cutting first.
Matching an AVR to the channels and HDMI features the room needs.

Use with the 2D planner

The calculators help with focused decisions, while the room planner keeps those decisions proportional to the whole room. Start with the main seat, then compare TV height, screen size, speaker angles, subwoofer options, and cable paths.

Open planner

All tools

TV Placement

Find screen height and viewing distance ranges that feel natural.

Speaker Placement

Translate 2.1, 3.1, 5.1, and 7.1 layouts into room positions.

Ceiling Speaker Install

Map Atmos ceiling speaker cutout targets, wire needs, and pre-cut safety checks.

Speaker Recommender

Tune power, bass target, room size, and budget to choose speaker type, woofer size, and brand fit.

Stereo Hi-Fi Setup

Dial in a two-channel music system with spacing, toe-in, stands, and amp fit.

Acoustic Test

Run a guided local listening and microphone check in the browser.

Screen Size

Match TV size to seating distance before buying.

AVR Matching

Choose receiver channels for your speaker layout and expansion plan.

Cable Length

Estimate speaker wire before you pull furniture apart.