The short answer
A good first telescope generally costs somewhere in the low hundreds of dollars, and a serious, long-term visual instrument often costs several hundred to a thousand dollars or more. Prices change by retailer, region and season, so treat every figure here as a rough range and check current listings.
Spending more does not automatically give you a better experience. A well-chosen, simple scope in the middle of the range often beats an expensive one that is awkward to use.
Typical price tiers
Under about $150: be careful
This is where many department-store and toy-style scopes sit. Some are usable for the Moon, but many pair small optics with wobbly mounts and advertise huge magnification. If your budget is this low, a pair of binoculars is often a better purchase. See best telescope for watching stars on a budget.
Roughly $200 to $400: the beginner sweet spot
Here you can often find a small tabletop Dobsonian, a 70 to 130 mm reflector or a small refractor on a workable mount. These scopes show craters on the Moon, Saturn’s rings, Jupiter’s cloud bands and moons, and some brighter star clusters and nebulae.
Roughly $400 to $1,000: serious entry-level
This range typically covers 8-inch Dobsonians, larger reflectors and some basic computerized scopes. An 8-inch Dobsonian is frequently cited as one of the best value options for visual observing because of how much aperture it provides. See the best telescope for deep space viewing.
$1,000 to $2,500 and up: bigger, smarter, more portable
Here you find larger Dobsonians, computerized Schmidt-Cassegrain scopes and some smart telescopes. You are generally paying for convenience (compact size, tracking, automation) as well as optics. For automated finding and tracking, see best GoTo telescopes.
Beyond that
Large-aperture and astrophotography-grade setups, with quality mounts, cameras and accessories, can run to several thousand dollars or much more. For imaging, the mount and camera often cost as much as the telescope itself; see the best telescope for astrophotography.
Why telescopes are expensive
- Optics: precise glass and mirror figuring takes careful manufacturing, and cost climbs quickly as aperture grows.
- Mounts: a stable, smoothly moving mount is a significant part of the cost.
- Automation: motors, electronics and software add to the price.
- Specialty glass: apochromatic refractors use special glass to control color fringing, which is why small ones can cost more than larger reflectors.
Where your money works hardest
- Aperture: the more light you gather, the more you see.
- Mount stability: a steady mount makes every view better.
- Usability: a scope that goes outside often is worth more than a better one that stays inside.
Hidden and extra costs
- Additional eyepieces
- A finder upgrade or red-dot finder
- Filters, such as a Moon filter or a light-pollution filter
- A dew shield, carrying case or observing chair
- A power supply for computerized mounts
These extras are usually modest compared with the telescope, but they add up.
How much does a 20 inch telescope cost?
A 20-inch scope is a very large instrument, usually in the range of several thousand dollars or more depending on design, and it is bulky and heavy. It can show a lot of deep-sky detail, but it is a big commitment in terms of space and transport.
Is it worth buying used?
Used telescopes can offer excellent value, especially Dobsonians and simple mounts, since optics hold up well when cared for. Inspect mirrors and lenses, check that the mount moves smoothly, and ideally try it before buying. Local astronomy clubs are a good place to find gear.
Setting your budget
Decide what you want to observe, think about how much you can carry and store, and then pick the largest stable scope that fits your budget and habits. If you are still deciding, return to our overall guide to picking a good telescope.