Break-Even Electricity Rate Calculator

Every mining rig has a hidden ceiling: an electricity price above which it can never turn a profit no matter how long it runs, and this calculator solves for exactly that number. It first computes your expected daily coin revenue from hashrate, network difficulty, block reward, and coin price (using the standard difficulty × 2^32 relationship to derive implied network hashrate), then works backward to find the $/kWh rate at which that revenue exactly equals your daily electricity cost — anything below that rate is profit, anything above it is a loss. This break-even rate is the single most useful number for deciding whether a given electricity contract, region, or hosting deal makes mining worthwhile, and it updates instantly as coin price or difficulty inputs change, since both directly shift the ceiling up or down.

Alongside the break-even figure, the calculator reports the joules-per-terahash efficiency of your hardware — a lower number means more hashing work per watt, which is the real driver of how favorable your break-even rate will be — and shows daily profit at three common real-world electricity tiers ($0.05, $0.10, and $0.15/kWh) so you can see the profit margin at cheap industrial power, average US residential rates, and pricier residential tiers without re-entering numbers. Keep in mind this is a point-in-time snapshot: it assumes constant coin price and constant network difficulty, both of which move continuously in reality, so the break-even rate calculated today can look very different in a month as the network adjusts and markets shift.