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Hobbies & Crafts

Photography, audio engineering, gardening, crafts & DIY, weather, automotive, and fun tools.

167 tools

Agriculture & Hydroponics

3 tools

Farm, crop, and hydroponic calculators.

Fertilizer Calculator Livestock Water Calculator Seed Rate Calculator

Astronomy

12 tools
Angular Size Calculator Apparent Magnitude vs Distance Orbital Velocity +9 more

Audio Engineering

8 tools

BPM, delay time, and audio production tools.

BPM to Milliseconds Speaker Crossover Calculator Delay Time Calculator +5 more

Automotive

16 tools

Fuel economy, tire size, and car calculators.

0-60 mph Calculator Compression Ratio Calculator Engine CFM Calculator +13 more

Crafts & DIY

24 tools

Fabric, yarn, and craft project calculators.

Bird House Hole Size Guide Campfire Wood Calculator Candle Wax Calculator +21 more

Electronics

13 tools
555 Timer Astable Calculator 555 Timer Monostable Calculator Capacitor Reactance Calculator +10 more

Environment

4 tools

Carbon footprint, recycling, and eco calculators.

Driving Carbon Footprint Driving Carbon Footprint Electricity Carbon Footprint +1 more

Gaming & Tabletop

12 tools

Dice, probability, and gaming calculators.

Board Game Dice Roll Probability Card Draw Probability Dice Roll Average +9 more

Gardening

15 tools

Soil, fertilizer, planting, and garden bed calculators.

Compost Carbon-Nitrogen Ratio Fertilizer Calculator Grow Light Coverage Calculator +12 more

Music

10 tools

BPM, key, and music theory calculators.

BPM from Tap Calculator BPM to Delay Calculator BPM to Milliseconds Converter +7 more

Pets

12 tools

Pet care, feeding, and health calculators.

Aquarium Heater Size Aquarium Volume Calculator Cat Age Calculator +9 more

Photography

13 tools

Exposure, depth of field, and print calculators.

Aspect Ratio Calculator Crop Factor Equivalent Depth of Field Calculator +10 more

Random & Fun

2 tools

Dice roller, coin flip, random number, and fun tools.

Coin Flip Probability Dice Roller

Rc Drones

5 tools
Drone Flight Time Estimator ESC Rating Calculator LiPo Charge Rate Calculator +2 more

Sewing & Textiles

8 tools

Fabric, pattern, and craft calculators.

Elastic Length Calculator Fabric Yardage Calculator Fabric Yardage Calculator +5 more

Vintage & Rare

1 tool

Typewriter font converter, vinyl RPM, and niche tools.

Vinyl Record Play Time

Weather

9 tools

Wind chill, heat index, and weather calculators.

Dew Point Calculator Dew Point Calculator Heat Index Calculator +6 more