Work out what to buy and which option fits your garden.
Make your lawn area the starting point. This turf vs seed calculator brings together the products you need, the prices you enter and your garden conditions, so you can plan the next step with a clearer view of the quantities and cost.
Enter the space in m² or ft², or measure your garden on the map. Choose what matters most: your budget, green cover quickly or the amount of work.
Tell the tool about your garden conditions. For quantities and costs, enter turf roll coverage, the packet’s new-lawn sowing rate and your supplier’s prices.
Review turf rolls and seed bags side by side. Add delivery, preparation and installation costs if known, then send your chosen option to a garden project brief.
Practical answers about lawn area, product quantities and your project budget.
Compare the costs for your own lawn area using current supplier prices. Enter the price per turf roll and seed bag, then add delivery, ground preparation and installation for each option. The calculator shows the costs you have entered and flags anything still unpriced.
Compare the costs for your own lawn area using current supplier prices. Enter the price per turf roll and seed bag, then add delivery, ground preparation and installation for each option. The calculator shows the costs you have entered and flags anything still unpriced.
The turf calculator adds your cutting allowance to the lawn area, divides that total by the coverage per roll and rounds up to whole rolls. For example, a 100 m² lawn with a 5% allowance needs 105 rolls when each roll covers 1 m². Check the actual roll size with your supplier.
Multiply the lawn area in square metres by the new-lawn sowing rate in grams per square metre, then divide by 1,000 to get kilograms. For example, 100 m² at 30 g/m² needs 3 kg of grass seed. Use your packet’s rate; adding the bag weight lets the tool round up to whole bags.
Use the garden area calculator to outline the lawn on a satellite map. Exclude patios, sheds and beds, then select the lawn zone and choose Compare turf & seed. Its measured area transfers into this calculator. Check the dimensions on site before you order.
You can enter watering access, children or pets, how long the lawn can stay off limits, exposure and ground condition. These answers help frame the comparison alongside your priority. Regional timing notes in the tool use UK guidance; local conditions and supplier advice still matter.
Use the material quantity calculator with the area to cover and the depth you plan to add. It estimates the volume of topsoil, compost or other loose material, with an optional allowance and bag count. Confirm the suitable material and depth for your site before ordering.
After comparing, choose Add to my brief under Turf or Seed. The garden project brief builder receives the selected option, lawn area, quantities and entered costs. Add your wider landscaping goals, access details and timing before copying or printing the brief.
