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10 Best Microwaves Under 300 of 2026

Buying Guide

Capacity and size

Think about how much you’ll cook and the space available in your kitchen. Small flats often suit 17–23-litre models, while families may prefer 25–30+ litres; measure the interior turntable diameter to ensure plates and dishes fit.

Power and cooking performance

Microwave power, measured in watts, affects cooking speed and evenness - 700–900W is typical for everyday use, with 1000W+ better for faster cooking. Also look for variable power settings and inverter technology, which provide gentler, more consistent heating.

Functions and cooking modes

Decide whether you need basic reheating, a grill function, or full convection/air-fry capabilities; grill and combination modes add browning and crisping but can push the price up. Useful extras include sensor cooking, quick-start presets and defrost by weight for convenience.

Controls, build quality and cleaning

Simple dial controls are reliable and great for everyday use, while touch panels and digital displays offer finer control and presets. Check the cavity finish (easy‑clean enamel is preferable), removable turntables and whether the door and ventilation suit your kitchen layout.

Price, warranty and retailer support

Set a realistic budget - there are strong options under £300 that balance features and reliability; expect to pay more for convection and larger capacity. Buy from reputable UK retailers (Currys, AO, John Lewis, Argos) and look for at least a 12‑month guarantee or an extended warranty option.

Frequently Asked Questions

What is the best microwave under £300 in 2026?
The 'best' depends on your needs, but in 2026 look for microwaves under £300 that combine around 800–1000W power, a 20–30 litre cavity, and a grill or combination mode. Popular UK choices come from established brands and are widely stocked at Currys, AO and John Lewis, where you can compare specifications and warranty terms.
Is a microwave worth buying in the UK?
Yes - microwaves remain highly practical for reheating meals, defrosting and quick cooking, especially for busy households and small flats. They save time and energy compared with heating a full oven, which can also reduce running costs in many cases.
Which microwave offers the best value for money under £300?
Value usually comes from a balance of power (800–900W), a 20–30L interior, and useful features like a grill or sensor cooking, combined with a solid warranty. Look for seasonal sales at UK retailers where well-specced models can drop well below RRP.
Panasonic vs Samsung - which should I buy?
Panasonic often scores for even heating and inverter technology, while Samsung tends to offer modern design, larger capacities and feature-rich panels. Choose Panasonic for reliable, consistent reheating and Samsung if you want a sleeker look and larger cavity, but compare specific models and features before buying.
Do I need a convection microwave or is grill enough?
A grill is fine for browning and toasting; convection adds true oven-like cooking and is useful if you want to roast or bake. If you mainly reheat and occasionally cook/toast, a microwave with grill or combination mode offers the best compromise under £300.
Are compact microwaves good for small UK flats?
Yes - compact 17–23 litre microwaves suit small kitchens and student digs, offering a smaller footprint and often lower power consumption. Just check the turntable size if you regularly use larger plates or casserole dishes.
Where is the best place to buy a microwave in the UK?
Major retailers such as Currys, AO, John Lewis and Argos provide a wide selection, reliable return policies and warranty handling. Online marketplaces like Amazon also offer competitive prices, but check seller reputation and warranty terms before purchase.
What is the best microwave for a small flat under £300 in 2026?
For a small flat, prioritise a compact 18–23 litre model with around 700–900W power and simple dial controls for reliability. Look for a model with a removable 24–25cm turntable, an easy‑clean enamel cavity and a 12‑month warranty to balance performance and practicality.
Is a combination (grill + microwave) model worth it in 2026?
Yes - combination models under £300 that include a grill plus variable microwave power are worth it if you want occasional browning and more cooking versatility. Choose one with at least 900W microwave power and a dedicated grill element for better results.
Panasonic vs Sharp - which should I buy for even heating?
Panasonic models with inverter technology generally deliver more even, consistent heating at lower power levels, making them preferable for reheating and delicate foods. Sharp offers solid value and feature sets, but if even heating is your priority, Panasonic typically has the edge.
Which microwave is best value for money in the UK under £300?
Best value often equals an 800–1000W unit with a 20–28L cavity, a grill or combination function and sensor cooking, purchased during sales from Currys, AO or John Lewis. These models give reliable performance, useful features and usually include at least a 12‑month guarantee.

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Last updated: June 5, 2026

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