Win Loss Ratio Calculator
The Win Loss Ratio Calculator computes your win rate, loss rate, and win-to-loss ratio from total wins and losses. Track performance in sports, trading, gaming, or sales with clear percentage breakdowns and streak analysis.
What is Win Loss Ratio?
Win loss ratio is the number of wins divided by the number of losses. A trader with 30 wins and 20 losses has a 1.5:1 win-loss ratio. Combined with average win/loss size, this ratio determines overall profitability. A 1:1 ratio is break-even only if average win size equals average loss size.
Win loss ratios are tracked in sports (team records), trading (profit/loss analysis), sales (deal conversion), gaming (player rankings), and legal (case outcomes). The ratio alone doesn't tell the full story — the magnitude of wins versus losses matters equally.
使用される計算公式・方程式
この計算ツールは5つの主要な公式を使用しています：
1 Win Loss Ratio ▼
45 wins and 30 losses: W/L = 45/30 = 1.50:1.
2 Win Rate Percentage ▼
45 wins in 75 games: Win Rate = (45/75) × 100 = 60%.
3 Profit Factor (Trading) ▼
30 wins × $500 avg / 20 losses × $400 avg = $15,000/$8,000 = 1.875.
比率計算ツールの使い方
この比率計算ツールは、以下の3ステップで簡単にご利用いただけます：
数値を入力
入力欄に既知の比率の値を入力します。求めたい未知数の入力欄は空欄のままにしておきます。
モードを選択
比率モード（解く、簡素化、スケーリング）を選択します。各モードで異なる計算式が適用されます。
結果を確認
計算するボタンを押します。結果画面に答えと、視覚的な比率バー、円グラフ、詳細なステップバイステップの解決プロセスが表示されます。
実例問題と段階的な解説
本比率計算ツールを使って、以下の3つの例題をステップバイステップで解決するプロセスです：
入力 1 Team record: 42 wins, 28 losses
入力 2 Trading: 55 wins ($200 avg), 45 losses ($150 avg)
入力 3 Sales: 18 deals won, 32 lost, 10 pending
よくある質問 (FAQ)
What is a good win loss ratio? ▼
In sports, above 1.0 (50%+) is winning. In trading, 1.0 is break-even only if average win = average loss. Many successful traders have a 0.8:1 ratio but win big and lose small, still profiting overall.
How does win loss ratio affect trading profitability? ▼
Profitability depends on BOTH win rate and risk-reward ratio. A 40% win rate with 3:1 reward-risk is profitable: (0.4 × 3) - (0.6 × 1) = 0.6 units profit per trade. Win rate alone is misleading.
What is the difference between win rate and win loss ratio? ▼
Win rate = wins/total (percentage of all outcomes that are wins). Win-loss ratio = wins/losses (direct comparison). A 60% win rate means 60 wins in 100 games, which is a 60:40 = 1.5:1 W/L ratio.
How do I improve my win loss ratio? ▼
In trading: improve entry criteria, use tighter stops, and let winners run. In sports: analyze losses for patterns. In sales: qualify leads better before investing time.
Should I track draws/ties in win loss ratio? ▼
Draws can be excluded (W/L ignoring draws), included as half-wins, or tracked separately. In chess ratings, draws count as half a point. In sales, 'no decision' outcomes are tracked separately from losses.