Your Measurements
Your Results Appear Here
Enter your bed dimensions and click Calculate to see how much mulch you need.
Landscaping 101
How to Calculate
Mulch the Right Way
Measure Your Bed
Measure the length and width of your garden bed in feet. For circles, just measure the radius. Irregular shapes? Enter the total square footage directly.
Choose Your Depth
Most beds need 2–3 inches for weed suppression. Slopes and high-traffic areas benefit from 4 inches. Use our presets for quick selection.
Read Your Results
We calculate cubic yards, cubic feet, and bag count automatically. Add a 10% buffer when purchasing to account for settling and edges.
Buy with Confidence
Use the mulch type comparison to pick the best material for your landscape goals — from wood chips to rubber mulch to pine straw.
Want the full deep dive? Read our complete mulch guide →
Frequently Asked
Questions
How much mulch do I need?
Multiply your area (length × width) by the desired depth in feet, then divide by 27 to get cubic yards. Our calculator does this instantly — just enter your dimensions above.
How deep should I apply mulch?
2–3 inches is ideal for most garden beds — enough to suppress weeds and retain moisture without smothering roots. Avoid piling mulch against tree trunks ("volcano mulching").
How many bags equal a cubic yard?
A standard 2 cu. ft. bag: you need about 13.5 bags per cubic yard. For 3 cu. ft. bags: about 9 bags per cubic yard. Our calculator shows both automatically.
When should I mulch?
Spring (after soil warms) and fall (before frost) are ideal. Avoid mulching frozen or waterlogged soil. A fresh layer each season keeps weed control and moisture retention optimal.
What type of mulch is best?
Wood chips and shredded bark are best for most landscapes. Cedar repels insects. Pine straw works well for acid-loving plants. Rubber mulch suits playgrounds and pathways.
Should I add extra mulch?
Yes — always buy 10–15% more than calculated. Mulch settles over time, and you'll need extra for edges and uneven terrain. It's easier to store extra bags than make a second trip.
Become a Smarter
Mulcher
Our blog covers mulch types, application techniques, seasonal timing, and landscape tips — everything you need to get the most out of every bag.
📖 Read the Blog →