UD5 Toolkit
Reptile UVB Distance Calculator – Basking Spot Optimization
Calculate the proper distance between a UVB bulb and your reptile's basking spot. Match bulb strength (T5, T8) to species UVI zone for optimal vitamin D3 synthesis.
Tag: Distance Converter - km & miles
13+ toolsBiodegradable Soap Safe Distance Checker – From Water Source
Even biodegradable soap should be used 200ft from water. Enter the river or lake location and see a circle showing where to wash.
Flash‑to‑Bang Lightning Distance – Seconds to Miles/Km
Tap when you see the lightning and tap again when you hear thunder. The tool calculates the distance and advises if you're in the danger zone.
Golf Club Distance Logger – Online Track Average Carry per Club
Record shot distances for each club and see averages. Identify gaps in your bag. Local storage.
Grow Light Distance Calculator – PAR & Foot‑Candles to Plant
Estimate the optimal hanging height of your grow light based on its PAR output and the light needs of your plants. Prevents light burn and leggy growth.
Lightning Distance Calculator - Online Count Thunder to Flash
Tap when you see lightning, tap again when you hear thunder. Calculates how far away the storm is in miles/km. Important outdoor safety tool.
Speed Distance Time Calculator - Online SDT Formula Tool
Enter any two variables (speed, distance, time) and get the third. Supports mph, km/h, m/s and multiple units. Practical for runners and drivers.
Distance Between Two Points - Online 2D & 3D Calculator
Compute the Euclidean distance between two points in 2D or 3D space. Also shows midpoint. Quick geometry helper.
Spray Paint Distance & Coverage Calculator – Online Even Coat Tool
Enter nozzle type and surface area to get optimal spray distance, sweep speed, and estimated cans needed. Prevent runs and drips.
Projector Throw Distance Calculator - Online Screen Size Estimator
Calculate projector throw distance or screen image size based on throw ratio. Visualize setup. Essential for home theater planning. Local.
Length Converter - Online Distance & Metric Imperial Unit Tool
Convert between all major length units: meter, kilometer, mile, yard, foot, inch, and more. Instant results in a clean interface. No registration.
Simple Haversine Distance Calculator – Online City‑to‑City
Enter two city names or coordinates and get the straight‑line distance in miles/km. Local calculation.
TV Viewing Distance Calculator - Online Size vs Resolution Guide
Find the optimal TV size for your room or the best viewing distance based on screen size and resolution (1080p, 4K, 8K). Simple THX/SMPTE reference.